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UseStudio.Browser.IE


			
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							////************************************************************************************
//// csEXWB control - The most complete C# Webbrowser control.
////
//// Auther: MH
//// Email: mehr13@hotmail.com
////
//// Permission is hereby granted, free of charge, to any person obtaining a
//// copy of this software and associated documentation files (the
//// "Software"), to deal in the Software without restriction, including
//// without limitation the rights to use, copy, modify, merge, publish,
//// distribute, and/or sell copies of the Software, and to permit persons
//// to whom the Software is furnished to do so.
////
//// Although reasonable care has been taken to ensure the correctness of this
//// implementation, this code should never be used in
//// any application without proper verification and testing.
////************************************************************************************


//using System;
//using System.ComponentModel;
//using System.Windows.Forms;
//using System.Drawing;
//using System.Collections.Generic;
//using System.Text;
//using System.Runtime.InteropServices;
//using System.Runtime.InteropServices.ComTypes;
//using System.Security;
//using IfacesEnumsStructsClasses;
//using System.Diagnostics;
//using System.Threading;

//namespace csExWB
//{
//    public class cEXWB :
//        Control,
//        IOleClientSite,
//        IOleInPlaceSite,
//        IDocHostShowUI,
//        IDocHostUIHandler,
//        DWebBrowserEvents2,
//        IfacesEnumsStructsClasses.IDropTarget,
//        IfacesEnumsStructsClasses.IServiceProvider,
//        IHttpSecurity,
//        IWindowForBindingUI,
//        INewWindowManager, //WinXP sp2 and up
//        IAuthenticate,
//        IOleCommandTarget,
//        IInternetSecurityManager,
//        IHTMLEventCallBack,
//        IProtectFocus, //IE7 + Vista
//        IHTMLOMWindowServices, //WinXP sp2 and up
//        IHTMLEditHost //Please refer to IHTMLEditHost.cs for description
//    {

//        #region Events and EventArgs Memebrs

//        public event csExWB.DocumentCompleteEventHandler DocumentComplete = null;
//        public event csExWB.BeforeNavigate2EventHandler BeforeNavigate2 = null;
//        public event csExWB.ClientToHostWindowEventHandler ClientToHostWindow = null;
//        public event csExWB.CommandStateChangeEventHandler CommandStateChange = null;
//        public event csExWB.DownloadBeginEventHandler DownloadBegin = null;
//        public event csExWB.DownloadCompleteEventHandler DownloadComplete = null;
//        public event csExWB.FileDownloadEventHandler FileDownload = null;
//        public event csExWB.NavigateComplete2EventHandler NavigateComplete2 = null;
//        public event csExWB.NavigateErrorEventHandler NavigateError = null;
//        public event csExWB.NewWindow2EventHandler NewWindow2 = null;
//        public event csExWB.NewWindow3EventHandler NewWindow3 = null;
//        public event csExWB.PrintTemplateInstantiationEventHandler PrintTemplateInstantiation = null;
//        public event csExWB.PrintTemplateTeardownEventHandler PrintTemplateTeardown = null;
//        public event csExWB.PrivacyImpactedStateChangeEventHandler PrivacyImpactedStateChange = null;
//        public event csExWB.ProgressChangeEventHandler ProgressChange = null;
//        public event csExWB.PropertyChangeEventHandler PropertyChange = null;
//        public event csExWB.SetSecureLockIconEventHandler SetSecureLockIcon = null;
//        public event csExWB.StatusTextChangeEventHandler StatusTextChange = null;
//        public event csExWB.TitleChangeEventHandler TitleChange = null;
//        public event csExWB.WindowClosingEventHandler WindowClosing = null;
//        public event csExWB.WindowSetHeightEventHandler WindowSetHeight = null;
//        public event csExWB.WindowSetLeftEventHandler WindowSetLeft = null;
//        public event csExWB.WindowSetResizableEventHandler WindowSetResizable = null;
//        public event csExWB.WindowSetTopEventHandler WindowSetTop = null;
//        public event csExWB.WindowSetWidthEventHandler WindowSetWidth = null;
//        public event csExWB.WBDragEnterEventHandler WBDragEnter = null;
//        public event csExWB.WBDragLeaveEventHandler WBDragLeave = null;
//        public event csExWB.WBDragOverEventHandler WBDragOver = null;
//        public event csExWB.WBDropEventHandler WBDragDrop = null;
//        public event csExWB.WBKeyDownEventHandler WBKeyDown = null;
//        public event csExWB.WBKeyUpEventHandler WBKeyUp = null;
//        public event csExWB.ContextMenuEventHandler WBContextMenu = null;
//        public event csExWB.GetOptionKeyPathEventHandler WBGetOptionKeyPath = null;
//        public event csExWB.DocHostShowUIShowMessageEventHandler WBDocHostShowUIShowMessage = null;
//        public event csExWB.DocumentCompleteExEventHandler DocumentCompleteEX = null;
//        public event csExWB.AuthenticateEventHandler WBAuthenticate = null;
//        public event csExWB.SecurityProblemEventHandler WBSecurityProblem = null;
//        public event csExWB.EvaluateNewWindowEventHandler WBEvaluteNewWindow = null;
//        public event csExWB.ScriptErrorEventHandler ScriptError = null;
//        public event csExWB.UpdatePageStatusEventHandler UpdatePageStatus = null;
//        public event csExWB.RefreshBeginEventHandler RefreshBegin = null;
//        public event csExWB.RefreshEndEventHandler RefreshEnd = null;
//        public event csExWB.ProcessUrlActionEventHandler ProcessUrlAction = null;
//        public event csExWB.AllowFocusChangeEventHandler AllowFocusChange = null;
//        public event csExWB.HTMLOMWindowServicesEventHandler HTMLOMWindowServices_moveTo = null;
//        public event csExWB.HTMLOMWindowServicesEventHandler HTMLOMWindowServices_moveBy = null;
//        public event csExWB.HTMLOMWindowServicesEventHandler HTMLOMWindowServices_resizeTo = null;
//        public event csExWB.HTMLOMWindowServicesEventHandler HTMLOMWindowServices_resizeBy = null;

//        public event csExWB.HTMLEventHandler HTMLEvent = null;
//        private HTMLEventArgs HtmlEventArg = new HTMLEventArgs();

//        private TitleChangeEventArgs TitleChangeEvent = new TitleChangeEventArgs();
//        private DocumentCompleteEventArgs DocumentCompleteEvent = new DocumentCompleteEventArgs();
//        private DocumentCompleteExEventArgs DocumentCompleteExEvent = new DocumentCompleteExEventArgs();
//        private StatusTextChangeEventArgs StatusTextChangeEvent = new StatusTextChangeEventArgs();
//        private ProgressChangeEventArgs ProgressChangeEvent = new ProgressChangeEventArgs();
//        private CommandStateChangeEventArgs CommandStateChangeEvent = new CommandStateChangeEventArgs();
//        private PropertyChangeEventArgs PropertyChangeEvent = new PropertyChangeEventArgs();
//        private BeforeNavigate2EventArgs BeforeNavigate2Event = new BeforeNavigate2EventArgs();
//        private NavigateComplete2EventArgs NavigateComplete2Event = new NavigateComplete2EventArgs();
//        private NewWindow2EventArgs NewWindow2Event = new NewWindow2EventArgs();
//        private NewWindow3EventArgs NewWindow3Event = new NewWindow3EventArgs();
//        private WindowSetResizableEventArgs WindowSetResizableEvent = new WindowSetResizableEventArgs();
//        private WindowSetLeftEventArgs WindowSetLeftEvent = new WindowSetLeftEventArgs();
//        private WindowSetTopEventArgs WindowSetTopEvent = new WindowSetTopEventArgs();
//        private WindowSetWidthEventArgs WindowSetWidthEvent = new WindowSetWidthEventArgs();
//        private WindowSetHeightEventArgs WindowSetHeightEvent = new WindowSetHeightEventArgs();
//        private WindowClosingEventArgs WindowClosingEvent = new WindowClosingEventArgs();
//        private ClientToHostWindowEventArgs ClientToHostWindowEvent = new ClientToHostWindowEventArgs();
//        private SetSecureLockIconEventArgs SetSecureLockIconEvent = new SetSecureLockIconEventArgs();
//        private FileDownloadEventArgs FileDownloadEvent = new FileDownloadEventArgs();
//        private NavigateErrorEventArgs NavigateErrorEvent = new NavigateErrorEventArgs();
//        private PrintTemplateInstantiationEventArgs PrintTemplateInstantiationEvent = new PrintTemplateInstantiationEventArgs();
//        private PrintTemplateTeardownEventArgs PrintTemplateTeardownEvent = new PrintTemplateTeardownEventArgs();
//        private PrivacyImpactedStateChangeEventArgs PrivacyImpactedStateChangeEvent = new PrivacyImpactedStateChangeEventArgs();
//        private UpdatePageStatusEventArgs UpdatePageStatusEvent = new UpdatePageStatusEventArgs();

//        private DocHostShowUIShowMessageEventArgs DocHostShowUIShowMessageEvent = new DocHostShowUIShowMessageEventArgs();
//        private ContextMenuEventArgs ContextMenuEvent = new ContextMenuEventArgs();
//        private GetOptionKeyPathEventArgs GetOptionKeyPathEvent = new GetOptionKeyPathEventArgs();
//        private WBKeyDownEventArgs WBKeyDownEvent = new WBKeyDownEventArgs();
//        private WBKeyUpEventArgs WBKeyUpEvent = new WBKeyUpEventArgs();
//        private EvaluateNewWindowEventArgs EvaluateNewWindowEvent = new EvaluateNewWindowEventArgs();
//        private SecurityProblemEventArgs SecurityProblemEvent = new SecurityProblemEventArgs();
//        private AuthenticateEventArgs AuthenticateEvent = new AuthenticateEventArgs();
//        private WBDragEnterEventArgs WBDragEnterEvent = new WBDragEnterEventArgs();
//        private WBDragOverEventArgs WBDragOverEvent = new WBDragOverEventArgs();
//        private WBDropEventArgs WBDropEvent = new WBDropEventArgs();
//        private ScriptErrorEventArgs ScriptErrorEvent = new ScriptErrorEventArgs();
//        private ProcessUrlActionEventArgs ProcessUrlActionEvent = new ProcessUrlActionEventArgs();
//        private AllowFocusChangeEventArgs AllowFocusChangeEvent = new AllowFocusChangeEventArgs();
//        private HTMLOMWindowServicesEventArgs HTMLOMWindowServicesEvent = new HTMLOMWindowServicesEventArgs();

//        #endregion //Events and EventArgs Memebrs

//        #region Local members

//        //Required by designer
//        private System.ComponentModel.IContainer components = null;

//        //Use the internal dragdrop in combination with WBDrag/Drop events
//        private bool m_bUseInternalDragDrop = true;
//        //Fires DocumentCompleteEx, with an additional parameter "docsource"
//        //containning the source of the incoming document before any scripts
//        //are executed.
//        private bool m_bSendSourceOnDocumentCompleteWBEx = false;
//        //this.Control->ShellEmbedding->ShellDocObj->IEServer
//        private IntPtr m_hWBServerHandle = (IntPtr)0;
//        private IntPtr m_hWBShellDocObjHandle = (IntPtr)0;
//        private IntPtr m_hWBShellEmbeddingHandle = (IntPtr)0;
//        //Startup URL + LocationUrl
//        private const string m_AboutBlank = "about:blank";
//        private string m_sUrl = "about:blank";
//        private bool m_bCanGoBack = false;
//        private bool m_bCanGoForward = false;
//        private TextSizeWB m_enumTextSize = TextSizeWB.Medium; //default
//        //Default, selecttext+no3dborder+flatscrollbars+themes(xp look)
//        private DOCHOSTUIFLAG m_DocHostUiFlags = DOCHOSTUIFLAG.NO3DBORDER |
//            DOCHOSTUIFLAG.FLAT_SCROLLBAR | DOCHOSTUIFLAG.THEME;
//        private DOCHOSTUIDBLCLK m_DocHostUiDbClkFlag = DOCHOSTUIDBLCLK.DEFAULT;
//        //DLCTL_DLIMAGES
//        private DOCDOWNLOADCTLFLAG m_DLCtlFlags = DOCDOWNLOADCTLFLAG.DLIMAGES |
//            DOCDOWNLOADCTLFLAG.BGSOUNDS | DOCDOWNLOADCTLFLAG.VIDEOS;

//        //Used in find
//        private IHTMLTxtRange m_txtrange = null;
//        private string m_sLastSearch = string.Empty;
//        //Pointer to our browser interface
//        private IWebBrowser2 m_WBWebBrowser2 = null;
//        //IntPtr.Zero
//        private IntPtr m_NullPointer = IntPtr.Zero;
//        private tagMSG m_NullMsg = new tagMSG();
//        private object m_NullObject = null;
//        //ConnectionPoint Cookie
//        private int m_dwCookie = 0;
//        //Keep track of our location + size
//        private tagRECT m_WBRect = new tagRECT(0, 0, 0, 0);
//        //WB IUnknown and other ifaces
//        private object m_WBUnknown = null;
//        private IOleObject m_WBOleObject = null;
//        private IOleInPlaceObject m_WBOleInPlaceObject = null;
//        private IOleCommandTarget m_WBOleCommandTarget = null;
//        ///Taken from article:
//        ///Invoke Hidden Commands in Your Web Browser
//        ///http://www.codeguru.com/cpp/i-n/ieprogram/openfaq/article.php/c8163/
//        ///As I stated above, the IDocHostUIHandler::ShowContextMenu demo of
//        ///"WebBrowser Customization" in the MSDN shows a way to manually build
//        ///IE's context menu from correlative resource file "SHDOCLC.DLL".
//        ///So, open the file "SHDOCLC.DLL" by using some resource explorer software
//        ///such as "eXeScope", we can find all the Command IDs (also menu item IDs)
//        ///used by the WebBrowser Control under menu resources, and all of them are
//        ///the same in IE 4.x/5.x/6.x according to my tesing.

//        //command send to IE server hwnd
//        private const int ID_IE_CONTEXTMENU_ADDFAV = 2261;
//        //comands send to shelldocobject hwnd
//        private const int ID_IE_FIND = 67;
//        private const int ID_IE_PAGESETUP = 259;
//        private const int ID_IE_PRINT = 260;
//        private const int ID_IE_PRINTPREVIEW = 277;
//        private const int ID_IE_FILE_NEWMAIL = 279;
//        private const int ID_IE_FILE_SENDPAGE = 282;
//        private const int ID_IE_FILE_SENDLINK = 283;
//        private const int ID_IE_FILE_SENDDESKTOPSHORTCUT = 284;
//        private const int ID_IE_FILE_IMPORTEXPORT = 374;
//        private const int ID_IE_FILE_ADDTRUST = 376;
//        private const int ID_IE_FILE_ADDLOCAL = 377;
//        private const int ID_IE_FILE_NEWCALL = 395; //Internet call
//        //To catch Refresh event!
//        // counter to monitor number of requests to BeforeNavigate2 vs number of requests to DownloadBegin.
//        private int m_nPageCounter = 0;
//        // counter to monitor number of DownloadBegin and DownloadEnd calls.
//        private int m_nObjCounter = 0;
//        // variable to tell us whether a refresh request has started.	
//        private bool m_bIsRefresh = false;
//        //browser thumb image cache
//        private Image m_WBThumbImg = null;

//        //Used to handle HtmlDocument and HtmlWindow events
//        private bool m_WantHTMLEvents = false;
//        private bool m_WantHtmlDocumentEvents = false;
//        private bool m_WantHtmlWindowEvents = false;
//        //These instances take care of the toplevel document and window
//        //For frameset sites, we use a collection of below classes
//        private cHTMLDocumentEvents m_TopLevelHtmlDocumentevents = new cHTMLDocumentEvents();
//        private cHTMLWindowEvents m_TopLevelHtmlWindowEvents = new cHTMLWindowEvents();
//        //Template based lists
//        private List<cHTMLDocumentEvents> m_HtmlDocumentEventsList = new List<cHTMLDocumentEvents>();
//        private List<cHTMLWindowEvents> m_HtmlWindowEventsList = new List<cHTMLWindowEvents>();

//        private int m_SecureLockIcon = (int)SecureLockIconConstants.secureLockIconUnsecure;

//        private object m_WinExternal = null;

//        //allow or disallow HTML dialogs launched using showModelessDialog() + showModalDialog() methods!
//        //Using CBT window hook
//        private WindowsHookUtil.HookInfo m_CBT = new WindowsHookUtil.HookInfo(CSEXWBDLMANLib.WINDOWSHOOK_TYPES.WHT_CBT);
//        private const string m_HTMLDlgClassName = "Internet Explorer_TridentDlgFrame";
//        private IntPtr m_HookHandled = IntPtr.Zero;
//        private string m_strTemp = string.Empty;
//        private int m_NCode = 0;

//        //To subclass Internet Explorer_Server handle in order to catch back and forward buttons
//        private IEServerWindow m_ieServerWindow = null;
//        private bool m_DocDone = false;

//        #endregion //Local members

//        #region Properties list

//        [Category("ExWB")]
//        public bool MainDocumentFullyLoaded
//        {
//            get { return m_DocDone; }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public int WBDOCDOWNLOADCTLFLAG
//        {
//            get { return (int)m_DLCtlFlags; }
//            set
//            {
//                m_DLCtlFlags = (DOCDOWNLOADCTLFLAG)value;
//                if ((m_WBUnknown != null) && (m_WBWebBrowser2 != null))
//                {
//                    //Signal change of DL property
//                    //so MSHTML call our Invoke method through Dispatch
//                    //Otherwise refreshing the page will have no effect
//                    //MSHTML does not know of new flags set by us
//                    //QI for IOleControl
//                    IOleControl pOC = m_WBUnknown as IOleControl;
//                    if (pOC != null)
//                        pOC.OnAmbientPropertyChange(HTMLDispIDs.DISPID_AMBIENT_DLCONTROL);
//                }
//            }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadImages
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.DLIMAGES) != 0); }
//            set { SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.DLIMAGES, value); }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadSounds
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.BGSOUNDS) != 0); }
//            set { SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.BGSOUNDS, value); }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadVideo
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.VIDEOS) != 0); }
//            set { SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.VIDEOS, value); }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadActiveX
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.NO_DLACTIVEXCTLS) == 0); }
//            set
//            {
//                if (value)
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_DLACTIVEXCTLS, false);
//                else
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_DLACTIVEXCTLS, true);
//            }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadJava
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.NO_JAVA) == 0); }
//            set
//            {
//                if (value)
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_JAVA, false);
//                else
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_JAVA, true);
//            }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadFrames
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.NO_FRAMEDOWNLOAD) == 0); }
//            set
//            {
//                if (value)
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_FRAMEDOWNLOAD, false);
//                else
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_FRAMEDOWNLOAD, true);
//            }
//        }

//        [Category("DOCDOWNLOADCTLFLAG")]
//        public bool DownloadScripts
//        {
//            get { return ((m_DLCtlFlags & DOCDOWNLOADCTLFLAG.NO_SCRIPTS) == 0); }
//            set
//            {
//                if (value)
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_SCRIPTS, false);
//                else
//                    SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG.NO_SCRIPTS, true);
//            }
//        }

//        [Category("DOCHOSTUIFLAG")]
//        public int WBDOCHOSTUIFLAG
//        {
//            get { return (int)m_DocHostUiFlags; }
//            set { m_DocHostUiFlags = (DOCHOSTUIFLAG)value; }
//        }

//        [Category("DOCHOSTUIFLAG")]
//        public bool Border3DEnabled
//        {
//            get { return ((m_DocHostUiFlags & DOCHOSTUIFLAG.NO3DBORDER) == 0); }
//            set
//            {
//                if (value)
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.NO3DBORDER, false);
//                else
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.NO3DBORDER, true);
//            }
//        }

//        [Category("DOCHOSTUIFLAG")]
//        public bool ScrollBarsEnabled
//        {
//            get { return ((m_DocHostUiFlags & DOCHOSTUIFLAG.SCROLL_NO) == 0); }
//            set
//            {
//                if (value)
//                {
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.SCROLL_NO, false);
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.FLAT_SCROLLBAR, value);
//                }
//                else
//                {
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.FLAT_SCROLLBAR, false);
//                    SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG.SCROLL_NO, true);
//                }
//            }
//        }

//        [Category("DOCHOSTUIDBLCLK")]
//        public DOCHOSTUIDBLCLK WBDOCHOSTUIDBLCLK
//        {
//            get { return m_DocHostUiDbClkFlag; }
//            set { m_DocHostUiDbClkFlag = value; }
//        }

//        [Category("ExWB")]
//        public SecureLockIconConstants SecureLockIcon
//        {
//            get
//            {
//                return (SecureLockIconConstants)m_SecureLockIcon;
//            }
//        }

//        [Category("ExWB")]
//        public TextSizeWB TextSize
//        {
//            get
//            {
//                if (m_WBOleCommandTarget != null)
//                {
//                    object retVal = new object(); //VT_NULL
//                    IntPtr pRet = m_NullPointer;
//                    int iZoom = (int)5;
//                    try
//                    {
//                        pRet = Marshal.AllocCoTaskMem((int)1024);
//                        Marshal.GetNativeVariantForObject(retVal, pRet);

//                        //NULL to specify the standard group
//                        int hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                            (uint)OLECMDID.OLECMDID_ZOOM,
//                            (uint)OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
//                            m_NullPointer, pRet);

//                        retVal = Marshal.GetObjectForNativeVariant(pRet);
//                        Marshal.FreeCoTaskMem(pRet);
//                        pRet = m_NullPointer;
//                        if (Type.GetTypeCode(retVal.GetType()) == TypeCode.Int32)
//                            iZoom = int.Parse(retVal.ToString());
//                        //else
//                        //    Debug.Write("Incorrect TypeCode!", "Get_TextSizeWB");
//                    }
//                    catch (Exception)
//                    {
//                    }
//                    finally
//                    {
//                        if (pRet != m_NullPointer)
//                            Marshal.FreeCoTaskMem(pRet);
//                    }
//                    if ((iZoom > -1) && (iZoom < 5))
//                        m_enumTextSize = (TextSizeWB)iZoom;
//                }
//                return m_enumTextSize;
//            }

//            set
//            {
//                if (m_WBOleCommandTarget != null)
//                {
//                    if (((int)value > (int)-1) && ((int)value < (int)5))
//                    {
//                        IntPtr pRet = m_NullPointer;
//                        try
//                        {
//                            pRet = Marshal.AllocCoTaskMem((int)1024);
//                            Marshal.GetNativeVariantForObject((int)value, pRet);

//                            int hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                                (uint)OLECMDID.OLECMDID_ZOOM,
//                                (uint)OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
//                                pRet, m_NullPointer);
//                            Marshal.FreeCoTaskMem(pRet);
//                            pRet = m_NullPointer;
//                            if (hr == Hresults.S_OK)
//                                m_enumTextSize = (TextSizeWB)value;
//                        }
//                        catch (Exception)
//                        {
//                        }
//                        finally
//                        {
//                            if (pRet != m_NullPointer)
//                                Marshal.FreeCoTaskMem(pRet);
//                        }
//                    }
//                }
//            }
//        }

//        [Category("ExWB")]
//        public bool CanGoBack
//        {
//            get { return m_bCanGoBack; }
//        }

//        [Category("ExWB")]
//        public bool CanGoForward
//        {
//            get { return m_bCanGoForward; }
//        }

//        [Category("ExWB")]
//        public IWebBrowser2 WebbrowserObject
//        {
//            get { return m_WBWebBrowser2; }
//        }

//        [Category("ExWB"), Description("true, fires DocumentCompleteEX instead of DocumentComplete passing source of the pDisp Document.")]
//        public bool SendSourceOnDocumentCompleteWBEx
//        {
//            get { return m_bSendSourceOnDocumentCompleteWBEx; }
//            set { m_bSendSourceOnDocumentCompleteWBEx = value; }
//        }

//        [Category("ExWB"), Description("Internet Explorer_Server HWND")]
//        public IntPtr IEServerHwnd
//        {
//            get { return WBIEServerHandle(); }
//        }

//        [Category("ExWB"), Description("ShellEmbedding HWND")]
//        public IntPtr ShellEmbedingHwnd
//        {
//            get { return WBShellEmbedingHandle(); }
//        }

//        [Category("ExWB"), Description("ShellDocObject HWND")]
//        public IntPtr ShellDocObjectHwnd
//        {
//            get { return WBShellDocObjHandle(); }
//        }

//        [Category("ExWB"),
//        Description("Allows default drag drop operations. Default false. To use internal drag drop, set RegisterForInternalDragDrop to true. Setting this property to true will deactivate internal drag drop.")]
//        public bool RegisterAsDropTarget
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.RegisterAsDropTarget;
//                else
//                    return false;
//            }
//            set
//            {
//                if (m_WBWebBrowser2 != null)
//                    m_WBWebBrowser2.RegisterAsDropTarget = value;
//                if (value)
//                    this.RegisterForInternalDragDrop = false;
//            }
//        }

//        [Category("ExWB"),
//        Description("Uses internal drag drop events to notify the client. Default true.")]
//        public bool RegisterForInternalDragDrop
//        {
//            get
//            {
//                return m_bUseInternalDragDrop;
//            }
//            set
//            {
//                m_bUseInternalDragDrop = value;
//                //Make sure we set RegisterAsDropTarget to false
//                if ((m_bUseInternalDragDrop) && (m_WBWebBrowser2 != null))
//                    this.RegisterAsDropTarget = false;
//            }
//        }

//        [Category("ExWB")]
//        public bool RegisterAsBrowser
//        {
//            //MessageBox(IntPtr.Zero, "", "", 0);
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.RegisterAsBrowser;
//                else
//                    return false;
//            }
//            set
//            {
//                if (m_WBWebBrowser2 != null)
//                    m_WBWebBrowser2.RegisterAsBrowser = value;
//            }
//        }

//        [Category("ExWB")]
//        public bool Silent
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.Silent;
//                else
//                    return false;
//            }
//            set
//            {
//                if (m_WBWebBrowser2 != null)
//                    m_WBWebBrowser2.Silent = value;
//            }
//        }

//        [Category("ExWB")]
//        public string LocationName
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.LocationName;
//                else
//                    return "Unavailable";
//            }
//        }

//        [Category("ExWB"), Description("Set or get current LocationURL. Works in design mode as well.")]
//        public string LocationUrl
//        {
//            //Treat it as URL
//            get
//            {
//                if ((!DesignMode) && (m_WBWebBrowser2 != null))
//                    m_sUrl = m_WBWebBrowser2.LocationURL;

//                if (m_sUrl.Length == 0)
//                    m_sUrl = "about:blank";
//                return m_sUrl;
//            }
//            set
//            {
//                m_sUrl = value;
//                if ((m_WBWebBrowser2 != null) && (m_sLastSearch.Length > 0))
//                    this.Navigate(m_sUrl);
//            }
//        }

//        [Category("ExWB")]
//        public bool Busy
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.Busy;
//                else
//                    return false;
//            }
//        }

//        [Category("ExWB")]
//        public bool OffLine
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.Offline;
//                else
//                    return false;
//            }
//            set
//            {
//                if (m_WBWebBrowser2 != null)
//                    m_WBWebBrowser2.Offline = value;
//            }
//        }

//        [Category("ExWB")]
//        public tagREADYSTATE ReadyState
//        {
//            get
//            {
//                if (m_WBWebBrowser2 != null)
//                    return m_WBWebBrowser2.ReadyState;
//                else
//                    return tagREADYSTATE.READYSTATE_UNINITIALIZED;
//            }
//        }

//        [Category("ExWB")]
//        public Image ThumbImage
//        {
//            get
//            {
//                if (m_WBThumbImg != null)
//                    return m_WBThumbImg;
//                else
//                    return new Bitmap(16, 16);
//            }
//        }

//        [Category("ExWB"), Description("Offers same functionality as ObjectForScripting of C# webbrowser wrapper control.")]
//        public object ObjectForScripting
//        {
//            get
//            {
//                return m_WinExternal;
//            }
//            set
//            {
//                m_WinExternal = value;
//            }
//        }

//        [Category("ExWB"), Description("Sets or retrieves the title of the document")]
//        public string DocumentTitle
//        {
//            get { return this.GetTitle(true); }
//            set
//            {
//                if ((this.m_WBWebBrowser2 != null) &&
//                    (m_WBWebBrowser2.Document != null))
//                {
//                    IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//                    if (doc2 != null)
//                        doc2.title = value;
//                }
//            }
//        }

//        [Category("ExWB"), Description("Sets or retrives the HTML source of the document")]
//        public string DocumentSource
//        {
//            get { return this.GetSource(true); }
//            set { this.LoadHtmlIntoBrowser(value); }
//        }

//        #endregion

//        #region Overriden members

//        public cEXWB()
//        {
//            ////Set some styles in regard to painting. We don't
//            //this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
//            //this.SetStyle(ControlStyles.ResizeRedraw, true);
//            //this.SetStyle(ControlStyles.UserPaint, true);
//            //this.SetStyle(ControlStyles.Selectable, true);
//            //this.SetStyle(ControlStyles.StandardClick, true);
//            //this.SetStyle(ControlStyles.Opaque, true);
//            //this.SetStyle(ControlStyles.ContainerControl, true);


//            //components = new System.ComponentModel.Container();
//            //this.SuspendLayout();
//            // 
//            // csEXWB
//            // 
//            //this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
//            //this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
//            //this.Name = "csEXWB";
//            //this.Size = new System.Drawing.Size(287, 239);
//            //this.ResumeLayout(false);
//        }

//        protected override void OnGotFocus(EventArgs e)
//        {
//            base.OnGotFocus(e);
//            if (!this.DesignMode)
//                SetFocus();
//        }

//        //protected override void OnPaint(PaintEventArgs e)
//        //{
//        //    e.Graphics.Clear(this.BackColor);
//        //    //base.OnPaint(e);
//        //}

//        protected override void Dispose(bool disposing)
//        {
//            if ((disposing) && (!this.DesignMode))
//            {
//                if (m_HookHandled != IntPtr.Zero)
//                    Marshal.FreeHGlobal(m_HookHandled);
//                if (m_WBThumbImg != null)
//                    m_WBThumbImg.Dispose();
//                InternalFreeWB();
//                if ((components != null))
//                    components.Dispose();
//            }
//            base.Dispose(disposing);
//        }

//        protected override void OnResize(EventArgs e)
//        {
//            base.OnResize(e);
//            this.SetLocation();
//        }

//        public override bool PreProcessMessage(ref Message msg)
//        {
//            bool handled = false;
//            if ((msg.Msg >= WindowsMessages.WM_KEYFIRST) && (msg.Msg <= WindowsMessages.WM_KEYLAST_NT501))
//            {
//                // If it's a key down, first see if the key combo is a command key
//                if (msg.Msg == WindowsMessages.WM_KEYDOWN)
//                {
//                    handled = ProcessCmdKey(ref msg, (Keys)(int)msg.WParam | ModifierKeys);
//                }

//                if (!handled)
//                {
//                    int keyCode = (int)msg.WParam;
//                    // Don't let Trident eat Ctrl-PgUp/PgDn
//                    if (((keyCode != (int)Keys.PageUp) &&
//                        (keyCode != (int)Keys.PageDown)) ||
//                        ((ModifierKeys & Keys.Control) == 0))
//                    {
//                        tagMSG cm = new tagMSG();

//                        cm.hwnd = msg.HWnd;
//                        cm.message = msg.Msg;
//                        cm.wParam = msg.WParam;
//                        cm.lParam = msg.LParam;

//                        IOleInPlaceActiveObject accele = m_WBUnknown as IOleInPlaceActiveObject;
//                        if ((accele != null) &&
//                            (accele.TranslateAccelerator(ref cm) == Hresults.S_OK))
//                            handled = true;
//                    }
//                    else
//                    {
//                        // WndProc for Ctrl-PgUp/PgDn is never called so call it directly here
//                        WndProc(ref msg);
//                        handled = true;
//                    }
//                }
//            }
//            if (!handled)
//            {
//                handled = base.PreProcessMessage(ref msg);
//            }
//            return handled;
//        }

//        //private int m_wparam = 0;
//        //private KBDLLHOOKSTRUCT m_KBLL = new KBDLLHOOKSTRUCT();
//        //How to handle LLKeyboardHook
//        /*
//            if (m.Msg == m_KEYBOARD_LL.UniqueMsgID)
//            {
//                //To stop, set to handled
//                //m.Result = m_HookHandled;
//                m_wparam = (int)m.WParam;

//                //Get the structure
//                m_KBLL.Reset();
//                Marshal.PtrToStructure(m.LParam, m_KBLL);

//                //bCtlPressed = (Control.ModifierKeys & Keys.Control) != 0);
//                if (m_wparam == WindowsMessages.WM_KEYDOWN)
//                    AppendText("KEYBOARD_LL_KEYDOWN=" + m_KBLL.vkCode.ToString() + "\r\n");
//                else if (m_wparam == WindowsMessages.WM_KEYUP)
//                    AppendText("KEYBOARD_LL_KEYUP=" + m_KBLL.vkCode.ToString() + "\r\n");
//                else if (m_wparam == WindowsMessages.WM_SYSKEYDOWN)
//                    AppendText("KEYBOARD_LL_SYSKEYDOWN=" + m_KBLL.vkCode.ToString() + "\r\n");
//                else if (m_wparam == WindowsMessages.WM_SYSKEYUP)
//                    AppendText("KEYBOARD_LL_SYSKEYUP=" + m_KBLL.vkCode.ToString() + "\r\n");
//            }
//        */

//        //private WindowsHookUtil.CBT_CREATEWND m_CBT_CREATEWND = new CBT_CREATEWND();
//        //private WindowsHookUtil.CREATESTRUCT m_CREATESTRUCT = new CREATESTRUCT();
//        protected override void WndProc(ref Message m)
//        {
//            if (m.Msg == m_CBT.UniqueMsgID)
//            {
//                m_csexwbCOMLib.HookProcNCode(CSEXWBDLMANLib.WINDOWSHOOK_TYPES.WHT_CBT,
//                    ref m_NCode);
//                if (m_NCode == WindowsHookUtil.HCBT_CREATEWND)
//                {
//                    //m.WParam contains handle to the new window

//                    //One method of getting new window information
//                    //Marshal.PtrToStructure(m.LParam, m_CBT_CREATEWND);
//                    //Marshal.PtrToStructure(m_CBT_CREATEWND.lpcs, m_CREATESTRUCT);
//                    //if (m_CREATESTRUCT.lpszClass != IntPtr.Zero)
//                    //{
//                    m_strTemp = WinApis.GetWindowClass(m.WParam); //Marshal.PtrToStringAnsi(m_CREATESTRUCT.lpszClass);
//                    if (!string.IsNullOrEmpty(m_strTemp))
//                    {
//                        if (m_strTemp.Equals(m_HTMLDlgClassName, StringComparison.CurrentCultureIgnoreCase))
//                            m.Result = m_HookHandled; //dismiss it
//                    }
//                    //}
//                }
//            }
//            else
//                base.WndProc(ref m);
//        }

//        //public override string ToString()
//        //{
//        //    return "csEXWB 1.0.0.4";
//        //    //return base.ToString();
//        //}

//        protected override void OnVisibleChanged(EventArgs e)
//        {
//            base.OnVisibleChanged(e);
//            if (m_WBOleObject == null)
//                return;
//            if (this.Visible)
//                m_WBOleObject.DoVerb((int)OLEDOVERB.OLEIVERB_SHOW, ref m_NullMsg, this, 0, this.Handle, ref m_WBRect);
//            else
//                m_WBOleObject.DoVerb((int)OLEDOVERB.OLEIVERB_HIDE, ref m_NullMsg, this, 0, this.Handle, ref m_WBRect);
//        }

//        protected override void OnHandleCreated(EventArgs e)
//        {
//            base.OnHandleCreated(e);
//            if (this.IsHandleCreated)
//            {
//                if (!this.DesignMode)
//                {
//                    //CBT hook return value to stop an HTMLDialog
//                    m_HookHandled = Marshal.AllocHGlobal(Marshal.SizeOf((Int32)1) + 1);
//                    Marshal.WriteInt32(m_HookHandled, 1);
//                    InitCOMLibrary();
//                }
//                InternalCreateWB();
//            }
//        }

//        public override void Refresh()
//        {
//            base.Refresh();
//            if ((m_WBWebBrowser2 != null) && (!this.DesignMode))
//                m_WBWebBrowser2.Refresh();
//        }

//        #endregion

//        #region Private Method Members

//        //Called from resize event to adjust the size of browser
//        private void SetLocation()
//        {
//            if (m_WBOleInPlaceObject == null)
//                return;
//            bool brect = WinApis.GetClientRect(this.Handle, out m_WBRect);
//            //Setup H+W
//            m_WBRect.Right = m_WBRect.Right - m_WBRect.Left; //W
//            m_WBRect.Bottom = m_WBRect.Bottom - m_WBRect.Top; //H
//            m_WBRect.Left = 0;
//            m_WBRect.Top = 0;

//            m_WBOleInPlaceObject.SetObjectRects(ref m_WBRect, ref m_WBRect);
//        }

//        //Returns corresponding string for an HRESULT
//        private string HresultAsString(int iHRESULT)
//        {
//            string sRet = "S_OK";
//            if (iHRESULT == Hresults.S_OK)
//            {
//                return sRet;
//            }
//            else if (iHRESULT == Hresults.S_FALSE)
//            {
//                sRet = "S_FALSE";
//            }
//            else if (iHRESULT == Hresults.E_INVALIDARG)
//            {
//                sRet = "E_INVALIDARG";
//            }
//            else if (iHRESULT == Hresults.E_NOTIMPL)
//            {
//                sRet = "E_NOTIMPL";
//            }
//            else if (iHRESULT == Hresults.E_ABORT)
//            {
//                sRet = "E_ABORT";
//            }
//            else if (iHRESULT == Hresults.E_ACCESSDENIED)
//            {
//                sRet = "E_ACCESSDENIED";
//            }
//            else if (iHRESULT == Hresults.E_FAIL)
//            {
//                sRet = "E_FAIL";
//            }
//            else if (iHRESULT == Hresults.E_FLAGS)
//            {
//                sRet = "E_FLAGS";
//            }
//            else if (iHRESULT == Hresults.E_HANDLE)
//            {
//                sRet = "E_HANDLE";
//            }
//            else if (iHRESULT == Hresults.E_NOINTERFACE)
//            {
//                sRet = "E_NOINTERFACE";
//            }
//            else if (iHRESULT == Hresults.E_OUTOFMEMORY)
//            {
//                sRet = "E_OUTOFMEMORY";
//            }
//            else if (iHRESULT == Hresults.E_PENDING)
//            {
//                sRet = "E_PENDING";
//            }
//            else if (iHRESULT == Hresults.E_POINTER)
//            {
//                sRet = "E_POINTER";
//            }
//            else if (iHRESULT == Hresults.E_UNEXPECTED)
//            {
//                sRet = "E_UNEXPECTED";
//            }
//            else if (iHRESULT == Hresults.DV_E_LINDEX)
//            {
//                sRet = "DV_E_LINDEX";
//            }
//            else if (iHRESULT == Hresults.OLEOBJ_S_CANNOT_DOVERB_NOW)
//            {
//                sRet = "OLEOBJ_S_CANNOT_DOVERB_NOW";
//            }
//            else if (iHRESULT == Hresults.OLEOBJ_S_INVALIDHWND)
//            {
//                sRet = "OLEOBJ_S_INVALIDHWND";
//            }
//            else if (iHRESULT == Hresults.OLEOBJ_S_INVALIDVERB)
//            {
//                sRet = "OLEOBJ_S_INVALIDVERB";
//            }
//            else if (iHRESULT == Hresults.OLEOBJ_E_NOVERBS)
//            {
//                sRet = "OLEOBJ_E_NOVERBS";
//            }
//            else if (iHRESULT == Hresults.OLE_E_NOT_INPLACEACTIVE)
//            {
//                sRet = "OLE_E_NOT_INPLACEACTIVE";
//            }
//            else if (iHRESULT == Hresults.OLE_E_CANT_BINDTOSOURCE)
//            {
//                sRet = "OLE_E_CANT_BINDTOSOURCE";
//            }
//            else if (iHRESULT == Hresults.OLE_E_CLASSDIFF)
//            {
//                sRet = "OLE_E_CLASSDIFF";
//            }
//            else if (iHRESULT == Hresults.OLECMDERR_E_UNKNOWNGROUP)
//            {
//                sRet = "OLECMDERR_E_UNKNOWNGROUP";
//            }
//            else if (iHRESULT == Hresults.OLECMDERR_E_NOTSUPPORTED)
//            {
//                sRet = "OLECMDERR_E_NOTSUPPORTED";
//            }
//            else if (iHRESULT == Hresults.OLECMDERR_E_DISABLED)
//            {
//                sRet = "OLECMDERR_E_DISABLED";
//            }
//            else if (iHRESULT == Hresults.OLECMDERR_E_CANCELED)
//            {
//                sRet = "OLECMDERR_E_CANCELED";
//            }
//            else
//            {
//                sRet = "UNKNOWN-VALUE: " + iHRESULT.ToString();
//            }
//            return sRet;
//        }

//        //To retreive ShellEmbeding + ShellDocObj + IEServer HWNDs
//        private IntPtr WBShellEmbedingHandle()
//        {
//            if (m_WBUnknown == null)
//                return m_NullPointer;

//            if ((!m_hWBShellEmbeddingHandle.Equals(m_NullPointer)) &&
//                (WinApis.IsWindow(m_hWBShellEmbeddingHandle)))
//                return m_hWBShellEmbeddingHandle;

//            m_hWBShellEmbeddingHandle = m_NullPointer;

//            IOleWindow pWin = m_WBUnknown as IOleWindow;
//            if (pWin != null)
//                pWin.GetWindow(ref m_hWBShellEmbeddingHandle);

//            return m_hWBShellEmbeddingHandle;
//        }
//        private IntPtr WBShellDocObjHandle()
//        {
//            if ((!m_hWBShellDocObjHandle.Equals(m_NullPointer)) &&
//                (WinApis.IsWindow(m_hWBShellDocObjHandle)))
//                return m_hWBShellDocObjHandle;
//            m_hWBShellDocObjHandle = m_NullPointer;
//            if (!WBShellEmbedingHandle().Equals(m_NullPointer))
//            {
//                m_hWBShellDocObjHandle = WinApis.GetWindow(m_hWBShellEmbeddingHandle, (uint)GetWindow_Cmd.GW_CHILD);
//            }
//            return m_hWBShellDocObjHandle;
//        }
//        private IntPtr WBIEServerHandle()
//        {
//            if ((!m_hWBServerHandle.Equals(m_NullPointer)) &&
//                (WinApis.IsWindow(m_hWBServerHandle)))
//                return m_hWBServerHandle;
//            if (!WBShellDocObjHandle().Equals(m_NullPointer))
//            {
//                m_hWBServerHandle = WinApis.GetWindow(m_hWBShellDocObjHandle, (uint)GetWindow_Cmd.GW_CHILD);
//            }
//            return m_hWBServerHandle;
//        }

//        //Registers clipboard formats that we can handle
//        //Registered Dragdrop formats
//        //private short m_CFHTML = 0;
//        //private short m_CFRTF = 0;
//        //private short m_CFURL = 0;
//        //private short m_CFNETRESOURCE = 0;
//        //private short m_CFUNTRUSTEDDRAGDROP = 0;
//        //private short m_CFFILEGROUPDESCRIPTOR = 0;
//        //private short m_CFFILECONTENTS = 0;
//        //private void RegisterClipboardFormatsForDragDrop()
//        //{
//        //    m_CFHTML = (short)WinApis.RegisterClipboardFormat("HTML Format");
//        //    m_CFRTF = (short)WinApis.RegisterClipboardFormat("Rich Text Format");
//        //    m_CFFILEGROUPDESCRIPTOR = (short)WinApis.RegisterClipboardFormat("FileGroupDescriptor");
//        //    m_CFFILECONTENTS = (short)WinApis.RegisterClipboardFormat("FileContents");
//        //    m_CFUNTRUSTEDDRAGDROP = (short)WinApis.RegisterClipboardFormat("UntrustedDragDrop");
//        //    m_CFURL = (short)WinApis.RegisterClipboardFormat("UniformResourceLocator");
//        //    m_CFNETRESOURCE = (short)WinApis.RegisterClipboardFormat("Net Resource");
//        //}

//        private void InternalFreeWB()
//        {
//            if ((!DesignMode) && (m_WBUnknown != null))
//            {
//                //Get connectionpointcontainer
//                IConnectionPointContainer cpCont = m_WBUnknown as IConnectionPointContainer;

//                //Find connection point
//                if (cpCont != null)
//                {
//                    Guid guid = typeof(DWebBrowserEvents2).GUID;
//                    IConnectionPoint m_WBConnectionPoint = null;
//                    cpCont.FindConnectionPoint(ref guid, out m_WBConnectionPoint);
//                    //UnAdvice
//                    if ((m_WBConnectionPoint != null) && (m_dwCookie > 0))
//                        m_WBConnectionPoint.Unadvise(m_dwCookie);
//                }

//                //UI and Inplace deactivate
//                if (m_WBOleInPlaceObject != null)
//                {
//                    m_WBOleInPlaceObject.UIDeactivate();
//                    m_WBOleInPlaceObject.InPlaceDeactivate();
//                }

//                //Disconnect from ole
//                if (m_WBOleObject != null)
//                {
//                    m_WBOleObject.Close((uint)OLEDOVERB.OLECLOSE_NOSAVE);
//                    m_WBOleObject.SetClientSite(null);
//                }
//            }
//            if (m_TravelLogStg != null)
//            {
//                Marshal.ReleaseComObject(m_TravelLogStg);
//                m_TravelLogStg = null;
//            }
//            if (m_txtrange != null)
//            {
//                Marshal.ReleaseComObject(m_txtrange);
//                m_txtrange = null;
//            }
//            if (m_WBOleCommandTarget != null)
//            {
//                Marshal.ReleaseComObject(m_WBOleCommandTarget);
//                m_WBOleCommandTarget = null;
//            }
//            if (m_WBWebBrowser2 != null)
//            {
//                Marshal.ReleaseComObject(m_WBWebBrowser2);
//                m_WBWebBrowser2 = null;
//            }
//            if (m_WBOleInPlaceObject != null)
//            {
//                Marshal.ReleaseComObject(m_WBOleInPlaceObject);
//                m_WBOleCommandTarget = null;
//            }
//            if (m_WBOleObject != null)
//            {
//                Marshal.ReleaseComObject(m_WBOleObject);
//                m_WBOleObject = null;
//            }
//            if (m_WBUnknown != null)
//            {
//                Marshal.ReleaseComObject(m_WBUnknown);
//                m_WBUnknown = null;
//            }

//            if (m_WantHtmlDocumentEvents)
//            {
//                m_TopLevelHtmlDocumentevents.DisconnectHtmlEvents();
//                DisconnectHtmlDocumentEvents();
//            }
//            if (m_WantHtmlWindowEvents)
//            {
//                m_TopLevelHtmlWindowEvents.DisconnectHtmlEvents();
//                DisconnectHtmlWindowEvnets();
//            }
//        }

//        /// <summary>
//        /// Create Webbrowser control and set up it's events
//        /// called from OnHandleCreated
//        /// Webbrowser control hosting requires an HWND
//        /// </summary>
//        /// <returns></returns>
//        private void InternalCreateWB()
//        {
//            //Create a new WB, throws exception if fails
//            Type webbrowsertype = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_WebBrowser, true);
//            //Using Activator inplace of CoCreateInstance, returns IUnknown
//            m_WBUnknown = System.Activator.CreateInstance(webbrowsertype);

//            //Get the IOleObject
//            m_WBOleObject = (IOleObject)m_WBUnknown;
//            //Set client site
//            int iret = m_WBOleObject.SetClientSite(this);
//            //Set hostnames
//            iret = m_WBOleObject.SetHostNames("csEXWB", string.Empty);

//            //Get client rect
//            bool brect = WinApis.GetClientRect(this.Handle, out m_WBRect);
//            //Setup H+W
//            m_WBRect.Right = m_WBRect.Right - m_WBRect.Left; //W
//            m_WBRect.Bottom = m_WBRect.Bottom - m_WBRect.Top; //H
//            m_WBRect.Left = 0;
//            m_WBRect.Top = 0;

//            //Get the IOleInPlaceObject
//            m_WBOleInPlaceObject = (IOleInPlaceObject)m_WBUnknown;
//            tagRECT trect = new tagRECT();
//            WinApis.CopyRect(ref trect, ref m_WBRect);
//            //Set WB rects
//            iret = m_WBOleInPlaceObject.SetObjectRects(ref m_WBRect, ref trect);

//            //INPLACEACTIVATE the WB
//            iret = m_WBOleObject.DoVerb((int)OLEDOVERB.OLEIVERB_INPLACEACTIVATE, ref m_NullMsg, this, 0, this.Handle, ref m_WBRect);

//            //Get the IWebBrowser2
//            m_WBWebBrowser2 = (IWebBrowser2)m_WBUnknown;

//            //By default, we handle dragdrops
//            m_WBWebBrowser2.RegisterAsDropTarget = false;
//            if (!DesignMode)
//            {
//                //Get connectionpointcontainer
//                IConnectionPointContainer cpCont = (IConnectionPointContainer)m_WBUnknown;
//                //Find connection point
//                Guid guid = typeof(DWebBrowserEvents2).GUID;
//                IConnectionPoint m_WBConnectionPoint = null;
//                cpCont.FindConnectionPoint(ref guid, out m_WBConnectionPoint);
//                //Advice
//                m_WBConnectionPoint.Advise(this, out m_dwCookie);

//                //Get the IOleComandTarget
//                m_WBOleCommandTarget = (IOleCommandTarget)m_WBUnknown;

//                //Reguster clipborad format for internal drag drop
//                //RegisterClipboardFormatsForDragDrop();
//            }

//            if (!string.IsNullOrEmpty(m_sUrl))
//                this.Navigate(m_sUrl);
//            else
//                this.Navigate(m_AboutBlank);

//            //Get the shell embedding, ...
//            WBIEServerHandle();
//        }

//        //Wrappers for Webbrowser.ExecWB and IOleCommand.Exec methods
//        private void ExecWB(OLECMDID command)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                m_WBWebBrowser2.ExecWB(command,
//                    OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
//                    ref m_NullObject, ref m_NullObject);
//            }
//        }
//        private int WBOleCommandExec(OLECMDID command)
//        {
//            //Execute the command using default group NULL
//            int hr = Hresults.S_FALSE; //1
//            if (m_WBOleCommandTarget != null)
//            {
//                //should return S_OK 0
//                hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                    (uint)command, (uint)OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
//                    m_NullPointer, m_NullPointer);

//            }
//            return hr;
//        }
//        private int WBOleCommandExec(OLECMDID command, OLECMDEXECOPT cmdopt)
//        {
//            //Execute the command using default group NULL
//            int hr = Hresults.S_FALSE;
//            if (m_WBOleCommandTarget != null)
//            {
//                hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                    (uint)command, (uint)cmdopt,
//                    m_NullPointer, m_NullPointer);
//            }
//            return hr;
//        }

//        //Utility, used in Findxxx methods
//        //MakeRGB(Color.FromName(Color));
//        private int MakeRGB(Color cColor)
//        {
//            try
//            {
//                //Taken from RGB macro in wingdi.h
//                return (int)((cColor.R | (((short)cColor.G) << 8)) | (((int)cColor.B) << 16));

//            }
//            catch (Exception)
//            {
//                return 0;
//            }
//        }

//        private void SynchDOCDOWNLOADCTLFLAG(DOCDOWNLOADCTLFLAG flag, bool add)
//        {
//            if (add)
//            {
//                if ((m_DLCtlFlags & flag) == 0)
//                    m_DLCtlFlags |= flag;
//            }
//            else
//            {
//                if ((m_DLCtlFlags & flag) != 0)
//                    m_DLCtlFlags -= flag;
//            }

//            if ((m_WBUnknown != null) && (m_WBWebBrowser2 != null))
//            {
//                try
//                {
//                    //Signal change of DL property
//                    //so MSHTML call our Invoke method through Dispatch
//                    //Otherwise refreshing the page will have no effect
//                    //MSHTML does not know of new flags set by us
//                    //QI for IOleControl
//                    IOleControl pOC = (IOleControl)m_WBUnknown;
//                    pOC.OnAmbientPropertyChange(HTMLDispIDs.DISPID_AMBIENT_DLCONTROL);
//                }
//                finally
//                {
//                }
//            }
//        }

//        private void SynchDOCHOSTUIFLAG(DOCHOSTUIFLAG flag, bool add)
//        {
//            if (add)
//            {
//                if ((m_DocHostUiFlags & flag) == 0)
//                    m_DocHostUiFlags |= flag;
//            }
//            else
//            {
//                if ((m_DocHostUiFlags & flag) != 0)
//                    m_DocHostUiFlags -= flag;
//            }
//        }

//        #endregion

//        #region Public Method Members

//        //Using IWebBrowser2 interface
//        public void Navigate(string URL)
//        {
//            if (m_WBWebBrowser2 != null)
//                m_WBWebBrowser2.Navigate(URL, ref m_NullObject, ref m_NullObject, ref m_NullObject, ref m_NullObject);
//        }
//        //http://msdn2.microsoft.com/en-us/library/2x07fbw8.aspx
//        public void Navigate(string URL, BrowserNavConstants Flags)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                //At runtime, outobj data type is determined and passed as
//                //variant of that type. Used for simple data types
//                object outobj = (int)Flags;
//                object outtarget = null;
//                if (Flags == BrowserNavConstants.navOpenInNewWindow)
//                    outtarget = "_BLANK";
//                m_WBWebBrowser2.Navigate(URL, ref outobj, ref outtarget, ref m_NullObject, ref m_NullObject);
//            }
//        }
//        public void Navigate(string URL, BrowserNavConstants Flags, string TargetFrameName, string PostData)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object vFlags = (int)Flags;
//                object vTargetFrameName = TargetFrameName;
//                object vPostData = ASCIIEncoding.ASCII.GetBytes(PostData);
//                object vHeaders = "Content-Type: application/x-www-form-urlencoded\r\n";
//                m_WBWebBrowser2.Navigate(URL, ref vFlags, ref vTargetFrameName, ref vPostData, ref vHeaders);
//            }
//        }
//        public void Navigate(string URL, BrowserNavConstants Flags, string PostData)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object vFlags = (int)Flags;
//                object vPostData = ASCIIEncoding.ASCII.GetBytes(PostData);
//                object vHeaders = "Content-Type: application/x-www-form-urlencoded\r\n";
//                m_WBWebBrowser2.Navigate(URL, ref vFlags, ref m_NullObject, ref vPostData, ref vHeaders);
//            }
//        }
//        //PostData: Flav=red&taste=good
//        public void Navigate(string URL, string PostData)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object vPostData = ASCIIEncoding.ASCII.GetBytes(PostData);
//                object vHeaders = "Content-Type: application/x-www-form-urlencoded\r\n";
//                m_WBWebBrowser2.Navigate(URL, ref m_NullObject, ref m_NullObject, ref vPostData, ref vHeaders);
//            }
//        }
//        public void Navigate(string URL, byte[] PostData)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object vPostData = PostData;
//                object vHeaders = "Content-Type: application/x-www-form-urlencoded\r\n";
//                m_WBWebBrowser2.Navigate(URL, ref m_NullObject, ref m_NullObject, ref vPostData, ref vHeaders);
//            }
//        }
//        public void Navigate2(string URL)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object outobj = URL;
//                m_WBWebBrowser2.Navigate2(ref outobj, ref m_NullObject, ref m_NullObject, ref m_NullObject, ref m_NullObject);
//            }
//        }
//        public void NavToBlank()
//        {
//            if (m_WBWebBrowser2 != null)
//                m_WBWebBrowser2.Navigate(m_AboutBlank, ref m_NullObject, ref m_NullObject, ref m_NullObject, ref m_NullObject);

//        }

//        public void Stop()
//        {
//            if (m_WBWebBrowser2 != null)
//                m_WBWebBrowser2.Stop();
//        }
//        public bool GoBack()
//        {
//            if ((m_WBWebBrowser2 != null) && (m_bCanGoBack))
//            {
//                m_WBWebBrowser2.GoBack();
//                return true;
//            }
//            return false;
//        }
//        public bool GoForward()
//        {
//            if ((m_WBWebBrowser2 != null) && (m_bCanGoForward))
//            {
//                m_WBWebBrowser2.GoForward();
//                return true;
//            }
//            return false;
//        }
//        public void GoHome()
//        {
//            if (m_WBWebBrowser2 != null)
//                m_WBWebBrowser2.GoHome();
//        }
//        public void GoSearch()
//        {
//            if (m_WBWebBrowser2 != null)
//                m_WBWebBrowser2.GoSearch();
//        }
//        public void Refresh2(RefreshConstants Level)
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                object outobj = (Int32)Level;
//                m_WBWebBrowser2.Refresh2(ref outobj);
//            }
//        }

//        //Using IOleCommandTarget interface
//        public bool SelectAll()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_SELECTALL) == Hresults.S_OK) ? true : false;
//        }
//        public bool Clear()
//        {
//            if (m_WBWebBrowser2 == null)
//                return false;
//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 == null)
//                return false;
//            if (doc2.body == null)
//                return false;
//            doc2.body.innerHTML = "";
//            return true;
//        }
//        public bool ClearSelection()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_CLEARSELECTION) == Hresults.S_OK) ? true : false;
//        }
//        public bool Copy()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_COPY) == Hresults.S_OK) ? true : false;
//        }
//        public bool Paste()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PASTE) == Hresults.S_OK) ? true : false;
//        }
//        public bool Cut()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_CUT) == Hresults.S_OK) ? true : false;
//        }
//        public bool Undo()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_UNDO) == Hresults.S_OK) ? true : false;
//        }
//        public bool Redo()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_REDO) == Hresults.S_OK) ? true : false;
//        }
//        public bool Delete()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_DELETE) == Hresults.S_OK) ? true : false;
//        }
//        public bool PasteSpecial()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PASTESPECIAL) == Hresults.S_OK) ? true : false;
//        }
//        public bool Spell()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_SPELL) == Hresults.S_OK) ? true : false;
//        }
//        public bool NewWindow()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_NEW) == Hresults.S_OK) ? true : false;
//        }
//        public bool Print()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PRINT) == Hresults.S_OK) ? true : false;
//        }
//        public bool Print2()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PRINT2) == Hresults.S_OK) ? true : false;
//        }
//        public bool Properties()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PROPERTIES) == Hresults.S_OK) ? true : false;
//        }
//        public bool PrintPreview()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PRINTPREVIEW) == Hresults.S_OK) ? true : false;
//        }
//        public bool PrintPreview2()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PRINTPREVIEW2) == Hresults.S_OK) ? true : false;
//        }
//        public bool PageSetup()
//        {
//            return (this.WBOleCommandExec(OLECMDID.OLECMDID_PAGESETUP) == Hresults.S_OK) ? true : false;
//        }
//        public void SaveAs()
//        {
//            //displays the old style saveas
//            //returns notsupported if user clicks cancel
//            //m_iTmpRet = this.WBOleCommandExec(OLECMDID.OLECMDID_SAVEAS);

//            //if (m_iTmpRet != Hresults.S_OK)
//            this.ExecWB(OLECMDID.OLECMDID_SAVEAS); //displays modern style
//        }

//        //using CGI_IWebBrowser group
//        private int ShowMiscCommands(WB_MiscCommandTarget command)
//        {
//            int hr = Hresults.S_FALSE;
//            uint uicommand = (uint)command;
//            if (m_WBOleCommandTarget != null)
//            {
//                IntPtr pPt = m_NullPointer;
//                try
//                {
//                    byte[] guidbytes = Iid_Clsids.CLSID_CGI_IWebBrowser.ToByteArray();
//                    pPt = Marshal.AllocCoTaskMem((int)(guidbytes.Length * 2));
//                    Marshal.Copy(guidbytes, 0, pPt, guidbytes.Length);

//                    hr = m_WBOleCommandTarget.Exec(pPt,
//                        uicommand,
//                        (uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
//                        m_NullPointer, m_NullPointer);

//                    Marshal.FreeCoTaskMem(pPt);
//                    pPt = m_NullPointer;
//                    //if (hr != Hresults.S_OK)
//                    //    MessageBox(m_NullPointer, HresultAsString(hr),"ShowFindWB",0);
//                }
//                finally
//                {
//                    if (pPt != m_NullPointer)
//                        Marshal.FreeCoTaskMem(pPt);
//                }
//            }
//            return hr;
//        }
//        public bool Find()
//        {
//            return (this.ShowMiscCommands(WB_MiscCommandTarget.Find) == Hresults.S_OK) ? true : false;
//        }
//        public bool IEOptions()
//        {
//            return (this.ShowMiscCommands(WB_MiscCommandTarget.Options) == Hresults.S_OK) ? true : false;
//        }
//        public bool ViewSource()
//        {
//            return (this.ShowMiscCommands(WB_MiscCommandTarget.ViewSource) == Hresults.S_OK) ? true : false;
//        }

//        //Using IShellUIHelper
//        //If not working use API:
//        //DoOrganizeFavDlg
//        //AddUrlToFavorites
//        private int ShellUIHelperMiscCommands(string scommand)
//        {

//            #region C++ version
//            //    HRESULT hr;
//            //    IShellUIHelper* pShellUI = NULL;
//            //    hr = CoCreateInstance(CLSID_ShellUIHelper, NULL, CLSCTX_INPROC_SERVER, IID_IShellUIHelper, (void **)&pShellUI);
//            //    if(FAILED(hr) || !pShellUI) return Hresults.S_FALSE;
//            //
//            //LanguageDialog
//            //    Opens the Language Preference dialog box.
//            //OrganizeFavorites
//            //    Opens the Organize Favorites dialog box.
//            //PrivacySettings
//            //    Microsoft® Internet Explorer 6 and later. Opens the Privacy Preferences dialog box.
//            //ProgramAccessAndDefaults
//            //    Microsoft Windows® XP Service Pack 1 (SP1) and later. Opens the Set Program Access and Defaults dialog box.
//            //
//            //    pShellUI->ShowBrowserUI(CComBSTR(L"OrganizeFavorites"), NULL, NULL);
//            //    pShellUI->Release(); 
//            #endregion

//            int hr = Hresults.S_FALSE;
//            //Create a new ShellUiHelper
//            Type shelluitype = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_ShellUIHelper, true);
//            //Using Activator inplace of CoCreateInstance, returns IUnknown
//            IShellUIHelper uihelper = System.Activator.CreateInstance(shelluitype) as IShellUIHelper;
//            if (uihelper == null)
//                return hr;
//            uihelper.ShowBrowserUI(scommand, ref m_NullObject);
//            return hr;
//        }
//        public void OrganizeFavorites()
//        {
//            ShellUIHelperMiscCommands("OrganizeFavorites");
//        }
//        public void PrivacySettings()
//        {
//            ShellUIHelperMiscCommands("PrivacySettings");
//        }
//        public void LanguageDialog()
//        {
//            ShellUIHelperMiscCommands("LanguageDialog");
//        }
//        public void ProgramAccessAndDefaults()
//        {
//            ShellUIHelperMiscCommands("ProgramAccessAndDefaults");
//        }

//        //Using IE Server hwnd and shelldocobject hwnd directly
//        //Do not work in Vista IE7, COMMANDID values have changed
//        public void AddToFavorites()
//        {
//            if (!WBIEServerHandle().Equals(m_NullPointer))
//            {
//                HandleRef hhwnd = new HandleRef(this, m_hWBServerHandle);
//                WinApis.SendMessage(hhwnd, (uint)WindowsMessages.WM_COMMAND,
//                    (IntPtr)ID_IE_CONTEXTMENU_ADDFAV, m_NullPointer);
//            }
//        }
//        public void ImportExport()
//        {
//            if (!WBShellDocObjHandle().Equals(m_NullPointer))
//            {
//                HandleRef hhwnd = new HandleRef(this, m_hWBShellDocObjHandle);
//                WinApis.SendMessage(hhwnd, (uint)WindowsMessages.WM_COMMAND,
//                    (IntPtr)ID_IE_FILE_IMPORTEXPORT, m_NullPointer);
//            }
//        }
//        public void SendLinkByEmail()
//        {
//            if (!WBShellDocObjHandle().Equals(m_NullPointer))
//            {
//                HandleRef hhwnd = new HandleRef(this, m_hWBShellDocObjHandle);
//                WinApis.SendMessage(hhwnd, (uint)WindowsMessages.WM_COMMAND,
//                    (IntPtr)ID_IE_FILE_SENDLINK, m_NullPointer);
//            }
//        }
//        public void SendPageByEmail()
//        {
//            if (!WBShellDocObjHandle().Equals(m_NullPointer))
//            {
//                HandleRef hhwnd = new HandleRef(this, m_hWBShellDocObjHandle);
//                WinApis.SendMessage(hhwnd, (uint)WindowsMessages.WM_COMMAND,
//                    (IntPtr)ID_IE_FILE_SENDPAGE, m_NullPointer);
//            }
//        }
//        public void SendShortcutToDesktop()
//        {

//            if (!WBShellDocObjHandle().Equals(m_NullPointer))
//            {
//                HandleRef hhwnd = new HandleRef(this, m_hWBShellDocObjHandle);
//                WinApis.SendMessage(hhwnd, (uint)WindowsMessages.WM_COMMAND,
//                    (IntPtr)ID_IE_FILE_SENDDESKTOPSHORTCUT, m_NullPointer);
//            }
//        }

//        //Using IWebbrowser2
//        //Loads a URL into browser using IPersistMoniker interface
//        public bool LoadUrlIntoBrowser(String url)
//        {
//            bool ret = false;
//            if ((m_WBWebBrowser2 == null) || (url.Length == 0))
//                return ret;

//            IPersistMoniker persistMoniker = m_WBWebBrowser2.Document as IPersistMoniker;
//            if (persistMoniker == null)
//                return ret;
//            IMoniker moniker = null;
//            IBindCtx bindContext = null;
//            WinApis.CreateBindCtx((uint)0, out bindContext);
//            if (bindContext == null)
//                return ret;
//            //need our own implementation of moniker
//            //moniker.BindToStorage(bindContext, null,ref IID_IStream,out new object(stream));            
//            WinApis.CreateURLMoniker(null, url, out moniker);
//            if (moniker == null)
//                return ret;
//            persistMoniker.Load(1, moniker, bindContext, 0);
//            return true;
//        }
//        public bool LoadHtmlIntoBrowser(string html, string sBaseUrl)
//        {
//            bool ret = false;
//            if ((m_WBWebBrowser2 == null) || (html.Length == 0))
//                return ret;

//            IStream stream = null;
//            //Use Marshal.StringToHGlobalAnsi to get ANSI
//            int hr = WinApis.CreateStreamOnHGlobal(Marshal.StringToHGlobalAuto(html), true, out stream);
//            if ((hr != Hresults.S_OK) || (stream == null))
//                return ret;

//            IPersistMoniker pPM = m_WBWebBrowser2.Document as IPersistMoniker;

//            if (pPM == null)
//                return ret;
//            IBindCtx bindctx = null;
//            WinApis.CreateBindCtx((uint)0, out bindctx);
//            if (bindctx == null)
//                return ret;
//            LoadHTMLMoniker loader = new LoadHTMLMoniker();
//            if (string.IsNullOrEmpty(sBaseUrl))
//                sBaseUrl = m_WBWebBrowser2.LocationURL;
//            loader.InitLoader(html, sBaseUrl);
//            pPM.Load(1, loader, bindctx, WinApis.STGM_READ);
//            stream = null;
//            return true;
//        }
//        public bool LoadHtmlIntoBrowser(string html)
//        {
//            bool ret = false;
//            if ((m_WBWebBrowser2 == null) ||
//                (m_WBWebBrowser2.Document == null) ||
//                (html.Length == 0)
//               )
//                return ret;
//            //pWebBrowser->get_Document( &pHTMLDocDisp );
//            //pHTMLDocDisp->QueryInterface( IID_IPersistStreamInit,  (void**)&pPersistStreamInit );
//            IStream stream = null;
//            //Use Marshal.StringToHGlobalAnsi to get ANSI
//            //or Marshal.StringToHGlobalUni to get UNICODE
//            //or Marshal.StringToHGlobalAuto to default to ANSI
//            //define UNICODE in build config to get UNICODE HGlobal
//            int hr = WinApis.CreateStreamOnHGlobal(Marshal.StringToHGlobalAuto(html), true, out stream);
//            if ((hr != Hresults.S_OK) || (stream == null))
//                return ret;

//            IPersistStreamInit persistentStreamInit = m_WBWebBrowser2.Document as IPersistStreamInit;
//            if (persistentStreamInit != null)
//            {
//                persistentStreamInit.InitNew();
//                persistentStreamInit.Load(stream);
//                persistentStreamInit = null;
//                ret = true;
//            }
//            stream = null;
//            return ret;
//        }

//        private bool ThumbnailCallback() { return false; }

//        /// <summary>
//        /// Faster than DrawThumb, but
//        /// does not work if a window is hidden
//        /// or is not on top of the zorder
//        /// </summary>
//        /// <param name="W"></param>
//        /// <param name="H"></param>
//        /// <param name="pixFormat"></param>
//        /// <returns></returns>
//        public Image DrawThumb2(int W, int H, System.Drawing.Imaging.PixelFormat pixFormat)
//        {
//            if (WBIEServerHandle().Equals(IntPtr.Zero))
//                return m_WBThumbImg;
//            Bitmap bmp1 = null;
//            try
//            {
//                if (m_WBThumbImg != null)
//                {
//                    m_WBThumbImg.Dispose();
//                    m_WBThumbImg = null;
//                }

//                IntPtr wbhdc = WinApis.GetWindowDC(m_hWBServerHandle);
//                if (wbhdc == IntPtr.Zero)
//                    return m_WBThumbImg;

//                bmp1 = new Bitmap(m_WBRect.Right, m_WBRect.Bottom, pixFormat);
//                using (Graphics grl = Graphics.FromImage(bmp1))
//                {
//                    IntPtr ghdc = grl.GetHdc();
//                    //blt it to the hdc
//                    WinApis.BitBlt(ghdc, 0, 0, bmp1.Width, bmp1.Height,
//                        wbhdc, 0, 0, TernaryRasterOperations.SRCCOPY);
//                    grl.ReleaseHdc();
//                }
//                m_WBThumbImg = bmp1.GetThumbnailImage(W, H, new Image.GetThumbnailImageAbort(ThumbnailCallback), IntPtr.Zero);
//                bmp1.Dispose();
//                bmp1 = null;
//            }
//            finally
//            {
//                if (bmp1 != null)
//                    bmp1.Dispose();
//            }
//            return m_WBThumbImg;
//        }
//        public Image DrawThumb(int W, int H, System.Drawing.Imaging.PixelFormat pixFormat)
//        {
//            Bitmap bmp = null;
//            try
//            {
//                if (m_WBThumbImg != null)
//                {
//                    m_WBThumbImg.Dispose();
//                    m_WBThumbImg = null;
//                }
//                if (m_WBWebBrowser2 == null)
//                    return m_WBThumbImg;

//                //Frameset
//                //http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/samples/internet/libraries/ie6_lib/default.asp
//                if (IsWBFrameset(this.m_WBWebBrowser2))
//                {
//                    //Not the best but works as long as the browser
//                    //is in front of Zorder
//                    //an alternative approach would be to get
//                    //the frames collection using GetFrames() method
//                    //Make a bitmap size of the webbrowser,
//                    //draw each frame on a seperate bitmap and then
//                    //transfer it to the main bitmap according to their
//                    //left and top offsets. A bit lenghty and messy.
//                    //If you are looking for a challange then go no further than
//                    //MSDN homepage, http://msdn.microsoft.com/library/default.asp
//                    //This page has a total of six frames, but some of the frames
//                    //are contained within other frames and so on. Getting the
//                    //width and height is easy, but finding where to start drawing
//                    //frames is not.
//                    return DrawThumb2(W, H, pixFormat);
//                }

//                //Get doc2, and viewobject
//                IHTMLDocument2 pDoc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//                if (pDoc2 == null)
//                    return m_WBThumbImg;

//                IViewObject pViewObject = pDoc2 as IViewObject;
//                if (pViewObject == null)
//                    return m_WBThumbImg;

//                IHTMLBodyElement pBody = null;
//                IHTMLElement pElem = null;
//                IHTMLStyle pStyle = null;
//                string strStyle = string.Empty;

//                //get the IHtmlelement
//                pElem = pDoc2.body;
//                if (pElem != null)
//                {
//                    //Get the IHTMLStyle
//                    pStyle = pElem.style;
//                    //Get the borderstyle so we can reset it
//                    strStyle = pStyle.borderStyle;
//                    //Hide 3D border
//                    pStyle.borderStyle = "none";

//                    pBody = pElem as IHTMLBodyElement;
//                    //No scrollbars
//                    if (pBody != null)
//                        pBody.scroll = "no";
//                }
//                //Create bmp
//                bmp = new Bitmap(m_WBRect.Right, m_WBRect.Bottom, pixFormat);

//                //draw
//                int hr = Hresults.S_FALSE;

//                using (Graphics gr = Graphics.FromImage(bmp))
//                {
//                    //get hdc
//                    IntPtr hdc = gr.GetHdc();
//                    hr = pViewObject.Draw(
//                        (uint)DVASPECT.DVASPECT_CONTENT,
//                        (int)-1, m_NullPointer, m_NullPointer,
//                        m_NullPointer, hdc, ref m_WBRect, ref m_WBRect,
//                        m_NullPointer, (uint)0);
//                    //if (hr == Hresults.S_OK)
//                    //{
//                    //    //Transfer to target hdc - TargetHdc = picturebox.image hdc
//                    //    StretchBlt(TargetHdc, X, Y, W, H,
//                    //        hdc, 0, 0, bmp.Width, bmp.Height,
//                    //        TernaryRasterOperations.SRCCOPY);
//                    //}
//                    gr.ReleaseHdc();
//                    //gr.Dispose();
//                }

//                if (!string.IsNullOrEmpty(strStyle))
//                    pStyle.borderStyle = strStyle;
//                if (pBody != null)
//                    pBody.scroll = "auto";

//                m_WBThumbImg = bmp.GetThumbnailImage(W, H,
//                    new Image.GetThumbnailImageAbort(ThumbnailCallback),
//                    IntPtr.Zero);

//                bmp.Dispose();
//                bmp = null;
//            }
//            finally
//            {
//                if (bmp != null)
//                    bmp.Dispose();
//            }
//            return m_WBThumbImg;
//        }
//        public void SaveBrowserImage(string sFileName,
//            System.Drawing.Imaging.PixelFormat pixFormat,
//            System.Drawing.Imaging.ImageFormat format)
//        {
//            if (m_WBWebBrowser2 == null)
//                return;
//            Bitmap bmp = null;
//            try
//            {
//                //Get doc2, doc3, and viewobject
//                IHTMLDocument2 pDoc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//                if (pDoc2 == null) return;
//                IHTMLDocument3 pDoc3 = m_WBWebBrowser2.Document as IHTMLDocument3;
//                if (pDoc3 == null) return;
//                IViewObject pViewObject = pDoc2 as IViewObject;
//                if (pViewObject == null) return;

//                IHTMLBodyElement pBody = null;
//                IHTMLElement pElem = null;
//                IHTMLElement2 pBodyElem = null;
//                IHTMLStyle pStyle = null;
//                string strStyle;
//                int bodyHeight = 0;
//                int bodyWidth = 0;
//                int rootHeight = 0;
//                int rootWidth = 0;
//                int height = 0;
//                int width = 0;

//                //get the IHtmlelement
//                pElem = pDoc2.body;

//                //Get the IHTMLStyle
//                if (pElem != null)
//                    pStyle = pElem.style;

//                //Get the borderstyle so we can reset it
//                strStyle = pStyle.borderStyle;
//                //Hide 3D border
//                pStyle.borderStyle = "none";
//                pBody = pElem as IHTMLBodyElement;
//                //No scrollbars
//                if (pBody != null)
//                    pBody.scroll = "no";

//                //Get root scroll h + w
//                //QI for IHTMLElement2
//                pBodyElem = pElem as IHTMLElement2;
//                if (pBodyElem != null)
//                {
//                    bodyWidth = pBodyElem.scrollWidth;
//                    bodyHeight = pBodyElem.scrollHeight;
//                }

//                //release
//                pElem = null;
//                pBodyElem = null;
//                //Get docelem
//                pElem = pDoc3.documentElement;
//                //QI for IHTMLElement2
//                if (pElem != null)
//                {
//                    pBodyElem = pElem as IHTMLElement2;
//                    //Get scroll H + W
//                    if (pBodyElem != null)
//                    {
//                        rootWidth = pBodyElem.scrollWidth;
//                        rootHeight = pBodyElem.scrollHeight;
//                    }
//                    //calc actual W + H
//                    width = rootWidth > bodyWidth ? rootWidth : bodyWidth;
//                    height = rootHeight > bodyHeight ? rootHeight : bodyHeight;
//                }
//                //Set up a rect
//                tagRECT rWPos = new tagRECT(0, 0, width, height);

//                //Size browser
//                if (m_WBOleInPlaceObject != null)
//                    m_WBOleInPlaceObject.SetObjectRects(ref rWPos, ref rWPos);

//                //Create bmp
//                bmp = new Bitmap(width, height, pixFormat);

//                //draw
//                int hr = Hresults.S_FALSE;
//                using (Graphics gr = Graphics.FromImage(bmp))
//                {
//                    //get hdc
//                    IntPtr hdc = gr.GetHdc();
//                    hr = pViewObject.Draw(
//                        (uint)DVASPECT.DVASPECT_CONTENT,
//                        (int)-1, m_NullPointer, m_NullPointer,
//                        m_NullPointer, hdc, ref rWPos, ref rWPos,
//                        m_NullPointer, (uint)0);
//                    gr.ReleaseHdc(hdc);
//                }

//                //reset
//                this.SetLocation();
//                if (!string.IsNullOrEmpty(strStyle))
//                    pStyle.borderStyle = strStyle;
//                if (pBody != null)
//                    pBody.scroll = "auto";

//                if (hr == Hresults.S_OK)
//                {
//                    //save
//                    bmp.Save(sFileName, format);
//                }
//                bmp.Dispose();
//                bmp = null;
//            }
//            finally
//            {
//                if (bmp != null)
//                    bmp.Dispose();
//            }
//        }

//        //Using CGID_ShellDocView
//        public void ShowCertificateDialog()
//        {
//            if (m_WBOleCommandTarget == null)
//                return;
//            IntPtr pPt = m_NullPointer;
//            int hr = Hresults.S_OK;
//            try
//            {
//                byte[] guidbytes = Iid_Clsids.CGID_ShellDocView.ToByteArray();
//                pPt = Marshal.AllocCoTaskMem((int)(guidbytes.Length * 2));
//                Marshal.Copy(guidbytes, 0, pPt, guidbytes.Length);

//                hr = m_WBOleCommandTarget.Exec(pPt,
//                    WinApis.SHDVID_SSLSTATUS,
//                    (uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
//                    m_NullPointer, m_NullPointer);

//                Marshal.FreeCoTaskMem(pPt);
//                pPt = m_NullPointer;
//            }
//            finally
//            {
//                if (pPt != m_NullPointer)
//                    Marshal.FreeCoTaskMem(pPt);
//            }
//        }

//        public bool HasFocus()
//        {
//            if (m_WBWebBrowser2 != null)
//            {
//                IHTMLDocument4 doc4 = m_WBWebBrowser2.Document as IHTMLDocument4;
//                if (doc4 != null)
//                    return doc4.hasFocus();
//            }
//            return false;
//        }
//        public void SetFocus()
//        {
//            if (m_WBWebBrowser2 == null)
//                return;

//            //UI activate first
//            if (m_WBOleObject != null)
//                m_WBOleObject.DoVerb((int)OLEDOVERB.OLEIVERB_UIACTIVATE,
//                    ref m_NullMsg, this, 0, this.Handle, ref m_WBRect);

//            //Check to see if frameset
//            //            if (IsWBFrameset(this.m_WBWebBrowser2))
//            //            {
//            IHTMLDocument4 doc4 = m_WBWebBrowser2.Document as IHTMLDocument4;
//            if (doc4 != null)
//                doc4.focus();
//            //            }
//            //            else //Use body elem to set focus
//            //                SetFocusBody();

//            //    if (!WBIEServerHandle().Equals(m_NullPointer))
//            //        SetFocus(m_hWBServerHandle);
//        }
//        private void SetFocusBody()
//        {
//            if (m_WBWebBrowser2 == null)
//                return;

//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 == null)
//                return;
//            IHTMLElement2 elem2 = doc2.body as IHTMLElement2;
//            if (elem2 == null)
//                return;
//            elem2.focus();
//        }

//        //We don't have access to IDispatch::Invoke
//        //Fired when IOleControl::OnAmbientPropertyChange is called
//        //from WBDOCDOWNLOADCTLFLAG property in response to DLCtl flag changing
//        [DispId(HTMLDispIDs.DISPID_AMBIENT_DLCONTROL)]
//        public int Idispatch_AmbiantDlControl_Invoke_Handler()
//        {
//            return (int)m_DLCtlFlags;
//        }

//        //Find + Find and highlight
//        public bool FindInPage(string sFind, bool DownWard, bool MatchWholeWord, bool MatchCase, bool ScrollIntoView)
//        {
//            bool success = false;
//            if (m_WBWebBrowser2 == null)
//                return success;

//            if (sFind.Length == 0)
//            {
//                m_sLastSearch = "";
//                m_txtrange = null;
//                return success;
//            }
//            else
//                m_sLastSearch = sFind;

//            int searchdir = (DownWard) ? 1000000 : -1000000;
//            int searchcase = 0; //default

//            //Set up search case
//            if ((MatchWholeWord) && (MatchCase))
//                searchcase = 6;
//            else if (MatchWholeWord)
//                searchcase = 2;
//            else if (MatchCase)
//                searchcase = 4;

//            if (m_txtrange != null)
//            {
//                if (sFind == m_sLastSearch)
//                {
//                    if (DownWard)
//                        m_txtrange.collapse(false);
//                    else
//                        m_txtrange.collapse(true);
//                }
//                else
//                    m_txtrange = null;
//            }

//            IHTMLDocument2 pDoc2 = GetActiveDocument();
//            if (pDoc2 == null)
//                return success;

//            IHTMLElement pElem = pDoc2.body;
//            IHTMLBodyElement pBodyelem = pElem as IHTMLBodyElement;
//            if (pBodyelem == null)
//                return success;

//            if (m_txtrange == null)
//                m_txtrange = pBodyelem.createTextRange();
//            if (m_txtrange == null)
//                return success;

//            success = m_txtrange.findText(sFind, searchdir, searchcase);
//            if (success)
//            {
//                m_txtrange.select();
//                if (ScrollIntoView)
//                    m_txtrange.scrollIntoView(true);
//            }
//            return success;
//        }
//        public int FindAndHightAllInPage(string sFind, bool MatchWholeWord, bool MatchCase, int cbackColor, int cForeColor)
//        {
//            int iMatches = 0;
//            if ((sFind.Length == 0) || (m_WBWebBrowser2 == null))
//                return iMatches;

//            int searchdir = 0;
//            int searchcase = 0; //default
//            const string strbg = "BackColor";
//            const string strf = "ForeColor";
//            const string sword = "Character";
//            const string stextedit = "Textedit";

//            //Set up search case
//            if ((MatchWholeWord) && (MatchCase))
//                searchcase = 6;
//            else if (MatchWholeWord)
//                searchcase = 2;
//            else if (MatchCase)
//                searchcase = 4;

//            IHTMLDocument2 pDoc2 = GetActiveDocument();
//            if (pDoc2 == null)
//                return iMatches;

//            IHTMLElement pElem = pDoc2.body;
//            IHTMLBodyElement pBodyelem = pElem as IHTMLBodyElement;
//            if (pBodyelem == null)
//                return iMatches;

//            IHTMLTxtRange pTxtRange = pBodyelem.createTextRange();
//            if (pTxtRange == null)
//                return iMatches;

//            //Can also QI pTxtRange for IOleCommand and use Exec method
//            //is recommanded by MSDN.
//            while (pTxtRange.findText(sFind, searchdir, searchcase))
//            {
//                if (cbackColor != 0)
//                    pTxtRange.execCommand(strbg, false, cbackColor);
//                if (cForeColor != 0)
//                    pTxtRange.execCommand(strf, false, cForeColor);
//                pTxtRange.moveStart(sword, 1);
//                pTxtRange.moveEnd(stextedit, 1);
//                iMatches = iMatches + 1;
//            }
//            return iMatches;
//        }
//        public int FindAndHightAllInPage(string sFind, bool MatchWholeWord, bool MatchCase, string cbackColor, string cForeColor)
//        {
//            int b = 0;
//            int f = 0;
//            //You may be tempted to use Color.Yellow.ToArgb(). But,
//            //the value returned includes the A value which
//            //causes confusion for MSHTML. i.e. Color.Cyan is interpreted as yellow
//            if (cbackColor.Length > 0)
//                b = MakeRGB(Color.FromName(cbackColor));
//            if (cForeColor.Length > 0)
//                f = MakeRGB(Color.FromName(cForeColor));
//            return this.FindAndHightAllInPage(sFind, MatchWholeWord, MatchCase, b, f);
//        }
//        public int FindAndHightAllInPage(string sFind, bool MatchWholeWord, bool MatchCase, Color cbackColor, Color cForeColor)
//        {
//            int b = 0;
//            int f = 0;
//            if (cbackColor != Color.Empty)
//                b = MakeRGB(cbackColor);
//            if (cForeColor != Color.Empty)
//                f = MakeRGB(cForeColor);
//            return this.FindAndHightAllInPage(sFind, MatchWholeWord, MatchCase, b, f);
//        }

//        //"Cut", "Copy", "Paste", ...
//        public bool IsCommandEnabled(string sCmdId)
//        {
//            if (m_WBWebBrowser2 == null)
//                return false;
//            IHTMLDocument2 doc2 = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 != null)
//                return doc2.queryCommandEnabled(sCmdId);
//            return false;
//        }
//        public bool SetDesignMode(string sMode)
//        {
//            if (m_WBWebBrowser2 == null)
//                return false;

//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 != null)
//            {
//                doc2.designMode = sMode;
//                return true;
//            }
//            return false;
//        }
//        public string GetDesignMode()
//        {
//            if (m_WBWebBrowser2 == null)
//                return string.Empty;
//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 != null)
//                return doc2.designMode;
//            return string.Empty;
//        }

//        //Frames Proof methods
//        public IHTMLDocument2 GetActiveDocument()
//        {
//            IHTMLDocument2 doc2 = null;
//            IHTMLElement elem = null;
//            IWebBrowser2 wb = null;
//            if (this.m_WBWebBrowser2 == null)
//                return doc2;

//            //Get document
//            doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 == null) return doc2;

//            if (!IsWBFrameset(doc2))
//                return doc2;

//            //Get active element
//            elem = doc2.activeElement;

//            IntPtr pelem = Marshal.GetIUnknownForObject(elem);
//            if (pelem != IntPtr.Zero)
//            {
//                IntPtr pWB = IntPtr.Zero;
//                int iRet = Marshal.QueryInterface(pelem,
//                    ref Iid_Clsids.IID_IWebBrowser2, out pWB);
//                //GetIUnknownForObject AddRefs so Release                        
//                Marshal.Release(pelem);

//                while (pWB != IntPtr.Zero)
//                {
//                    wb = Marshal.GetObjectForIUnknown(pWB) as IWebBrowser2;

//                    //QueryInterface AddRefs so Release
//                    Marshal.Release(pWB);
//                    pWB = IntPtr.Zero;

//                    if (wb == null) break;

//                    doc2 = wb.Document as IHTMLDocument2;
//                    if (doc2 == null) break;

//                    elem = doc2.activeElement;
//                    if (elem == null) break;

//                    pelem = Marshal.GetIUnknownForObject(elem);
//                    if (pelem != IntPtr.Zero)
//                        iRet = Marshal.QueryInterface(pelem,
//                            ref Iid_Clsids.IID_IWebBrowser2, out pWB);
//                    Marshal.Release(pelem);
//                }
//            }

//            //Here is the C# version. Raises exception

//            ////QI for IWebbrowser2 iface
//            //wb = (IWebBrowser2)elem;
//            ////Continue till no more frames to traverse
//            //while (wb != null)
//            //{
//            //    doc2 = (IHTMLDocument2)wb.Document;
//            //    elem = doc2.activeElement;
//            //    wb = (IWebBrowser2)elem;
//            //}

//            return doc2;
//        }
//        public IHTMLElement GetActiveElement()
//        {
//            IHTMLElement elem = null;
//            IHTMLDocument2 doc2 = GetActiveDocument();
//            if (doc2 != null)
//                elem = doc2.activeElement;
//            return elem;
//        }

//        //if(bTopLevel == true) we use the toplevel document (Not frameset)
//        //if(bTopLevel == false) we find the activedocument and use it's document
//        //Use IsFrameset method in conjunction with these methods
//        public string GetTitle(bool bTopLevel)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return string.Empty;
//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if (doc2 != null)
//                return doc2.title;
//            else
//                return string.Empty;
//        }
//        public string GetTitle(IWebBrowser2 thisBrowser)
//        {
//            if (thisBrowser == null)
//                return string.Empty;
//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 != null)
//                return doc2.title;
//            else
//                return string.Empty;
//        }
//        public string GetText(bool bTopLevel)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return string.Empty;
//            IHTMLDocument3 doc3 = null;
//            if (bTopLevel)
//            {
//                doc3 = m_WBWebBrowser2.Document as IHTMLDocument3;
//                if (doc3 != null)
//                    return doc3.documentElement.outerText;
//            }
//            else
//            {
//                doc3 = this.GetActiveDocument() as IHTMLDocument3;
//                if (doc3 != null)
//                    return doc3.documentElement.outerText;
//            }
//            return string.Empty;
//        }
//        public string GetText(IWebBrowser2 thisBrowser)
//        {
//            if (thisBrowser == null)
//                return string.Empty;
//            IHTMLDocument3 doc3 = thisBrowser.Document as IHTMLDocument3;
//            if (doc3 != null)
//                return doc3.documentElement.outerText;
//            else
//                return string.Empty;
//        }
//        public string GetSource(bool bTopLevel)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return string.Empty;

//            IHTMLDocument3 doc3 = null;
//            if (bTopLevel)
//                doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//            //return GetSource(this.m_WBWebBrowser2);
//            else
//                doc3 = this.GetActiveDocument() as IHTMLDocument3;
//            if ((doc3 != null) && (doc3.documentElement != null))
//                return doc3.documentElement.outerHTML; //innerHTML;
//            return string.Empty;
//        }
//        public string GetSource(IWebBrowser2 thisBrowser)
//        {
//            if ((thisBrowser == null) || (thisBrowser.Document == null))
//                return string.Empty;

//            //Declare vars
//            int hr = Hresults.S_OK;
//            IStream pStream = null;
//            IPersistStreamInit pPersistStreamInit = null;

//            // Query for IPersistStreamInit.
//            pPersistStreamInit = thisBrowser.Document as IPersistStreamInit;
//            if (pPersistStreamInit == null)
//                return string.Empty;

//            //Create stream, delete on release
//            hr = WinApis.CreateStreamOnHGlobal(m_NullPointer, true, out pStream);
//            if ((pStream == null) || (hr != Hresults.S_OK))
//                return string.Empty;

//            //Save
//            hr = pPersistStreamInit.Save(pStream, false);
//            if (hr != Hresults.S_OK)
//                return string.Empty;

//            //Now read from stream....

//            //First get the size
//            long ulSizeRequired = (long)0;
//            //LARGE_INTEGER
//            long liBeggining = (long)0;
//            System.Runtime.InteropServices.ComTypes.STATSTG statstg = new System.Runtime.InteropServices.ComTypes.STATSTG();
//            pStream.Seek(liBeggining, (int)tagSTREAM_SEEK.STREAM_SEEK_SET, m_NullPointer);
//            pStream.Stat(out statstg, (int)tagSTATFLAG.STATFLAG_NONAME);

//            //Size
//            ulSizeRequired = statstg.cbSize;
//            if (ulSizeRequired == (long)0)
//                return string.Empty;

//            //Allocate buffer + read
//            byte[] pSource = new byte[ulSizeRequired];
//            pStream.Read(pSource, (int)ulSizeRequired, m_NullPointer);

//            //Added by schlaup to handle UTF8 and UNICODE pages
//            //Convert
//            //ASCIIEncoding asce = new ASCIIEncoding();
//            //return asce.GetString(pSource);
//            Encoding enc = null;

//            if (pSource.Length > 8)
//            {
//                // Check byte order mark
//                if ((pSource[0] == 0xFF) && (pSource[1] == 0xFE)) // UTF16LE
//                    enc = Encoding.Unicode;

//                if ((pSource[0] == 0xFE) && (pSource[1] == 0xFF)) // UTF16BE
//                    enc = Encoding.BigEndianUnicode;

//                if ((pSource[0] == 0xEF) && (pSource[1] == 0xBB) && (pSource[2] == 0xBF)) //UTF8
//                    enc = Encoding.UTF8;

//                if (enc == null)
//                {
//                    // Check for alternating zero bytes which might indicate Unicode
//                    if ((pSource[1] == 0) && (pSource[3] == 0) && (pSource[5] == 0) && (pSource[7] == 0))
//                        enc = Encoding.Unicode;
//                }
//            }

//            if (enc == null)
//                enc = Encoding.Default;

//            int bomLength = enc.GetPreamble().Length;

//            return enc.GetString(pSource, bomLength, pSource.Length - bomLength);
//        }
//        public IHTMLElementCollection GetImages(bool bTopLevel)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;
//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument() as IHTMLDocument2;
//            if (doc2 == null)
//                return null;
//            return doc2.images as IHTMLElementCollection;
//        }
//        public IHTMLElementCollection GetAnchors(bool bTopLevel)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;
//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument() as IHTMLDocument2;
//            if (doc2 == null)
//                return null;
//            return doc2.anchors as IHTMLElementCollection;
//        }
//        public string GetSelectedText(bool bTopLevel, bool ReturnAsHTML)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return string.Empty;

//            IHTMLDocument2 doc2 = null;
//            IHTMLSelectionObject selobj = null;
//            IHTMLTxtRange range = null;

//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if ((doc2 == null) || (doc2.selection == null))
//                return string.Empty;

//            selobj = doc2.selection as IHTMLSelectionObject;
//            if (selobj == null)
//                return string.Empty;

//            if ((selobj.EventType == "none") || (selobj.EventType == "control"))
//                return string.Empty;

//            range = selobj.createRange() as IHTMLTxtRange;
//            if (range == null)
//                return string.Empty;

//            if (ReturnAsHTML)
//                return range.htmlText;
//            else
//                return range.text;

//        }
//        public IHTMLElement ElementFromPoint(bool bTopLevel, int X, int Y)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;

//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if (doc2 != null)
//                return doc2.elementFromPoint(X, Y);
//            else
//                return null;
//        }
//        //execCommand(true, "insertimage", false, null)
//        public bool ExecCommand(bool bTopLevel, string CmdId, bool showUI, object CmdValue)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return false;

//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if (doc2 != null)
//                return doc2.execCommand(CmdId, showUI, CmdValue);
//            else
//                return false;
//        }
//        //OleCommandExec(true, MSHTML_COMMAND_IDS.IDM_HTMLEDITMODE, true);
//        //OleCommandExec(true, MSHTML_COMMAND_IDS.IDM_COMPOSESETTINGS, "0,0,0,2,0.0.0,255.255.255,Arial");
//        public bool OleCommandExec(bool bTopLevel, MSHTML_COMMAND_IDS CmdID, object pvaIn)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return false;
//            IOleCommandTarget m_Doc2OleCommandTraget = null;
//            IntPtr m_Guid_MSHTML = m_NullPointer;
//            bool bret = false;
//            IntPtr pIn = IntPtr.Zero;
//            try
//            {
//                byte[] guidbytes = Iid_Clsids.Guid_MSHTML.ToByteArray();
//                m_Guid_MSHTML = Marshal.AllocCoTaskMem((int)(guidbytes.Length * 2));
//                Marshal.Copy(guidbytes, 0, m_Guid_MSHTML, guidbytes.Length);

//                IHTMLDocument2 doc2 = null;
//                if (bTopLevel)
//                    doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//                else
//                    doc2 = this.GetActiveDocument();
//                if (doc2 == null)
//                    return false;
//                m_Doc2OleCommandTraget = doc2 as IOleCommandTarget;
//                if (m_Doc2OleCommandTraget == null)
//                    return false;

//                pIn = Marshal.AllocCoTaskMem((int)1024);
//                Marshal.GetNativeVariantForObject(pvaIn, pIn);

//                bret = (m_Doc2OleCommandTraget.Exec(m_Guid_MSHTML, (uint)CmdID,
//                    (uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
//                    pIn, m_NullPointer) == Hresults.S_OK) ? true : false;

//                Marshal.FreeCoTaskMem(m_Guid_MSHTML);
//                m_Guid_MSHTML = m_NullPointer;
//                Marshal.FreeCoTaskMem(pIn);
//                pIn = IntPtr.Zero;
//            }
//            finally
//            {
//                if (m_Guid_MSHTML != m_NullPointer)
//                    Marshal.FreeCoTaskMem(m_Guid_MSHTML);
//                if (pIn != IntPtr.Zero)
//                    Marshal.FreeCoTaskMem(pIn);
//            }
//            return bret;
//        }
//        public bool OleCommandExec(bool bTopLevel, MSHTML_COMMAND_IDS CmdID)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return false;
//            IOleCommandTarget m_Doc2OleCommandTraget = null;
//            IntPtr m_Guid_MSHTML = m_NullPointer;
//            bool bret = false;
//            try
//            {
//                byte[] guidbytes = Iid_Clsids.Guid_MSHTML.ToByteArray();
//                m_Guid_MSHTML = Marshal.AllocCoTaskMem((int)(guidbytes.Length * 2));
//                Marshal.Copy(guidbytes, 0, m_Guid_MSHTML, guidbytes.Length);

//                IHTMLDocument2 doc2 = null;
//                if (bTopLevel)
//                    doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//                else
//                    doc2 = this.GetActiveDocument();
//                if (doc2 == null)
//                    return false;
//                m_Doc2OleCommandTraget = doc2 as IOleCommandTarget;
//                if (m_Doc2OleCommandTraget == null)
//                    return false;

//                bret = (m_Doc2OleCommandTraget.Exec(m_Guid_MSHTML, (uint)CmdID,
//                    (uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
//                    m_NullPointer, m_NullPointer) == Hresults.S_OK) ? true : false;

//                Marshal.FreeCoTaskMem(m_Guid_MSHTML);
//                m_Guid_MSHTML = m_NullPointer;
//            }
//            finally
//            {
//                if (m_Guid_MSHTML != m_NullPointer)
//                    Marshal.FreeCoTaskMem(m_Guid_MSHTML);
//            }
//            return bret;
//        }
//        public object QueryCommandValue(string CmdID)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;

//            IHTMLDocument2 doc2 = null;
//            doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 != null)
//                return doc2.queryCommandValue(CmdID);

//            return null;
//        }
//        public bool QueryCommandState(bool bTopLevel, string CmdId)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return false;

//            IHTMLDocument2 doc2 = null;
//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if (doc2 != null)
//                return doc2.queryCommandState(CmdId);
//            else
//                return false;
//        }
//        public IHTMLElement GetElementByID(bool bTopLevel, string idval)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;
//            IHTMLDocument3 doc3 = null;
//            if (bTopLevel)
//                doc3 = m_WBWebBrowser2.Document as IHTMLDocument3;
//            else
//                doc3 = GetActiveDocument() as IHTMLDocument3;
//            if (doc3 != null)
//                return doc3.getElementById(idval);
//            else
//                return null;
//        }
//        public IHTMLElementCollection GetElementsByName(bool bTopLevel, string elemname)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;
//            IHTMLDocument3 doc3 = null;
//            if (bTopLevel)
//                doc3 = m_WBWebBrowser2.Document as IHTMLDocument3;
//            else
//                doc3 = GetActiveDocument() as IHTMLDocument3;
//            if (doc3 != null)
//                return doc3.getElementsByName(elemname) as IHTMLElementCollection;
//            else
//                return null;
//        }
//        public IHTMLElementCollection GetElementsByTagName(bool bTopLevel, String tagname)
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return null;
//            IHTMLDocument3 doc3 = null;
//            if (bTopLevel)
//                doc3 = m_WBWebBrowser2.Document as IHTMLDocument3;
//            else
//                doc3 = GetActiveDocument() as IHTMLDocument3;
//            if (doc3 != null)
//                return doc3.getElementsByTagName(tagname) as IHTMLElementCollection;
//            else
//                return null;
//        }
//        //m_CurWB.execScript(true, "javascript:__doPostBack('NY,412800013,09/15/2007,10010,18,C,165,0','false')", "JavaScript");
//        public object execScript(bool bTopLevel, string ScriptName, string ScriptLanguage)
//        {
//            if ((this.m_WBWebBrowser2 == null) || (ScriptName.Length == 0))
//                return null;

//            IHTMLDocument2 doc2 = null;
//            IHTMLWindow2 win2 = null;

//            if (bTopLevel)
//                doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            else
//                doc2 = this.GetActiveDocument();
//            if (doc2 == null)
//                return null;

//            win2 = doc2.parentWindow as IHTMLWindow2;
//            if (win2 == null) //change from !=
//                return null;

//            //MSDN, JScript is MSHTML default
//            if (ScriptLanguage.Length == 0)
//                ScriptLanguage = "JavaScript";
//            return win2.execScript(ScriptName, ScriptLanguage);
//        }
//        /// <summary>
//        /// Invokes a script within the HTML page
//        /// </summary>
//        /// <param name="ScriptName"></param>
//        /// <param name="Data"></param>
//        /// <returns></returns>
//        public object InvokeScript(string ScriptName, object[] Data)
//        {
//            object oRet = null;

//            if (m_WBWebBrowser2 == null)
//                return oRet;

//            IHTMLDocument doc = m_WBWebBrowser2.Document as IHTMLDocument;
//            if (doc == null)
//                return oRet;
//            object oScript = doc.Script;
//            if (oScript == null)
//                return oRet;
//            //Invoke script
//            if (Data == null)
//                Data = new object[] { };
//            //http://msdn2.microsoft.com/en-us/library/system.reflection.bindingflags.aspx
//            oRet = oScript.GetType().InvokeMember(ScriptName,
//                System.Reflection.BindingFlags.InvokeMethod, null, oScript, Data);
//            return oRet;
//        }
//        public object InvokeScript(IWebBrowser2 wb, string ScriptName, object[] Data)
//        {
//            object oRet = null;

//            if (wb == null)
//                return oRet;

//            IHTMLDocument doc = wb.Document as IHTMLDocument;
//            if (doc == null)
//                return oRet;
//            object oScript = doc.Script;
//            if (oScript == null)
//                return oRet;
//            //Invoke script
//            if (Data == null)
//                Data = new object[] { };
//            //http://msdn2.microsoft.com/en-us/library/system.reflection.bindingflags.aspx
//            oRet = oScript.GetType().InvokeMember(ScriptName,
//                System.Reflection.BindingFlags.InvokeMethod, null, oScript, Data);
//            return oRet;
//        }

//        //Frames related
//        public bool IsFrameset()
//        {
//            return IsWBFrameset(this.m_WBWebBrowser2);
//        }
//        public int FramesCount()
//        {
//            return WBFramesCount(this.m_WBWebBrowser2);
//        }
//        public List<IWebBrowser2> GetFrames()
//        {
//            return GetFrames(this.m_WBWebBrowser2);
//        }
//        private List<IWebBrowser2> GetFrames(IWebBrowser2 pWB)
//        {
//            List<IWebBrowser2> wbFrames = new List<IWebBrowser2>();

//            IOleContainer oc = pWB.Document as IOleContainer;
//            if (oc == null)
//                return null;

//            //get the OLE enumerator for the embedded objects
//            int hr = 0;
//            IEnumUnknown eu;

//            hr = oc.EnumObjects(tagOLECONTF.OLECONTF_EMBEDDINGS, out eu); //EU ALLOC
//            Marshal.ReleaseComObject(oc);                                 //OC FREE
//            Marshal.ThrowExceptionForHR(hr);

//            object pUnk = null;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;

//            //get the first ebmedded object
//            hr = eu.Next(MAX_FETCH_COUNT, out pUnk, out fetched);         //PUNK ALLOC
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucessfully get a new embedding, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                //QI pUnk for the IWebBrowser2 interface
//                IWebBrowser2 brow = pUnk as IWebBrowser2;
//                if (brow != null)
//                {
//                    if (IsWBFrameset(brow))
//                    {
//                        List<IWebBrowser2> frames = GetFrames(brow);
//                        if ((frames != null) && (frames.Count > 0))
//                        {
//                            wbFrames.AddRange(frames);
//                            frames.Clear();
//                        }
//                    }
//                    else
//                    {
//                        wbFrames.Add(brow);
//                        //Marshal.ReleaseComObject(brow);                         //PUNK FREE
//                    }
//                } //if(brow != null)

//                //get the next ebmedded object
//                hr = eu.Next(MAX_FETCH_COUNT, out pUnk, out fetched);       //PUNK ALLOC
//                Marshal.ThrowExceptionForHR(hr);

//            } //for(int i = 0; HRESULTS.S_OK == hr; i++)
//            Marshal.ReleaseComObject(eu);                                 //EU FREE

//            return wbFrames;
//        }
//        private bool IsWBFrameset(IWebBrowser2 pWB)
//        {
//            bool bRet = true;

//            IHTMLDocument2 doc2 = pWB.Document as IHTMLDocument2;
//            if (doc2 == null)
//                return bRet;

//            IHTMLElement elem = doc2.body;
//            if (elem != null)
//            {
//                //QI for IHtmlBodyElement
//                IntPtr pbody = Marshal.GetIUnknownForObject(elem);
//                IntPtr pbodyelem = IntPtr.Zero;
//                if (pbody != IntPtr.Zero)
//                {
//                    int iRet = Marshal.QueryInterface(pbody,
//                        ref Iid_Clsids.IID_IHTMLBodyElement, out pbodyelem);
//                    Marshal.Release(pbody);
//                    if (pbodyelem != IntPtr.Zero)
//                    {
//                        bRet = false;
//                        Marshal.Release(pbodyelem);
//                    }
//                }
//                //IHTMLBodyElement bodyelem = (IHTMLBodyElement)elem;
//                //MSDN, If no body present then this is a frameset
//                //if (bodyelem != null)
//                //    bRet = false;
//            }

//            return bRet;
//        }
//        private bool IsWBFrameset(IHTMLDocument2 doc2)
//        {
//            bool bRet = true;
//            if (doc2 == null)
//                return bRet;

//            IHTMLElement elem = doc2.body;
//            if (elem != null)
//            {
//                //QI for IHtmlBodyElement
//                IntPtr pbody = Marshal.GetIUnknownForObject(elem);
//                IntPtr pbodyelem = IntPtr.Zero;
//                if (pbody != IntPtr.Zero)
//                {
//                    int iRet = Marshal.QueryInterface(pbody,
//                        ref Iid_Clsids.IID_IHTMLBodyElement, out pbodyelem);
//                    Marshal.Release(pbody);
//                    if (pbodyelem != IntPtr.Zero)
//                    {
//                        bRet = false;
//                        Marshal.Release(pbodyelem);
//                    }
//                }
//            }

//            return bRet;
//        }
//        private int WBFramesCount(IWebBrowser2 pWB)
//        {
//            int lRet = 0;

//            IOleContainer oc = pWB.Document as IOleContainer;
//            if (oc == null)
//                return lRet;

//            //get the OLE enumerator for the embedded objects
//            int hr = 0;
//            IEnumUnknown eu;

//            hr = oc.EnumObjects(tagOLECONTF.OLECONTF_EMBEDDINGS, out eu); //EU ALLOC
//            Marshal.ReleaseComObject(oc);                                 //OC FREE
//            Marshal.ThrowExceptionForHR(hr);

//            object pUnk = null;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;

//            //get the first ebmedded object
//            hr = eu.Next(MAX_FETCH_COUNT, out pUnk, out fetched);         //PUNK ALLOC
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucessfully get a new embedding, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                //QI pUnk for the IWebBrowser2 interface
//                IWebBrowser2 brow = pUnk as IWebBrowser2;
//                if (brow != null)
//                {
//                    if (IsWBFrameset(brow))
//                        lRet += WBFramesCount(brow);
//                    else
//                    {
//                        lRet++;
//                        Marshal.ReleaseComObject(brow);                         //PUNK FREE
//                    }
//                } //if(brow != null)

//                //get the next ebmedded object
//                hr = eu.Next(MAX_FETCH_COUNT, out pUnk, out fetched);       //PUNK ALLOC
//                Marshal.ThrowExceptionForHR(hr);

//            } //for(int i = 0; HRESULTS.S_OK == hr; i++)
//            Marshal.ReleaseComObject(eu);                                 //EU FREE

//            return lRet;
//        }

//        //Internet shortcuts
//        public bool CreateInternetShortCut(string LocalFileName, string URL, string Description, string IconFileName, int IconIndex)
//        {
//            bool bRet = false;
//            Type iURL = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_InternetShortcut);
//            //#if UNICODE
//            IUniformResourceLocatorW pURL = System.Activator.CreateInstance(iURL) as IUniformResourceLocatorW;
//            //#else
//            //            IUniformResourceLocatorA pURL = (IUniformResourceLocatorA)System.Activator.CreateInstance(iURL);
//            //#endif
//            if (pURL == null)
//                return bRet;

//            IPersistFile pPF = pURL as IPersistFile;
//            if (pPF == null)
//                return bRet;
//            //#if UNICODE
//            IShellLinkW pSL = pURL as IShellLinkW;
//            //#else
//            //            IShellLinkA pSL = (IShellLinkA)pURL;
//            //#endif
//            if (pSL == null)
//                return bRet;

//            int hr = pURL.SetURL(URL, (uint)0);
//            if (hr != Hresults.S_OK)
//                return bRet;

//            if (Description.Length > 0)
//                pSL.SetDescription(Description);
//            if (IconFileName.Length > 0)
//                pSL.SetIconLocation(IconFileName, IconIndex);

//            //Save
//            pPF.Save(LocalFileName, true);

//            return bRet;
//        }
//        public string ResolveInternetShortCut(string InternetShortCutPath)
//        {
//            string URL = string.Empty;
//            Type iURL = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_InternetShortcut);
//            //#if UNICODE
//            IUniformResourceLocatorW pURL = System.Activator.CreateInstance(iURL) as IUniformResourceLocatorW;
//            //#else
//            //            IUniformResourceLocatorA pURL = (IUniformResourceLocatorA)System.Activator.CreateInstance(iURL);
//            //#endif
//            if (pURL == null)
//                return URL;

//            IPersistFile pPF = pURL as IPersistFile;
//            if (pPF == null)
//                return URL;

//            pPF.Load(InternetShortCutPath, (int)WinApis.STGM_READ);

//            IntPtr str = IntPtr.Zero;
//            int hr = pURL.GetURL(out str);

//            if (str == m_NullPointer)
//                return URL;

//            //IntPtr hIcon, hInst;
//            //Icon ico, clone;
//            //StringBuilder sb = new StringBuilder(MAX_PATH);
//            //int nIconIdx;
//            ////#if UNICODE
//            //            IShellLinkW pSL = (IShellLinkW)pURL;
//            ////#else
//            ////            IShellLinkA pSL = (IShellLinkA)pURL;
//            ////#endif
//            //pSL.GetIconLocation(sb, sb.Capacity, out nIconIdx);
//            ////Icon Path: sb.ToString();
//            ////Icon index: nIconIdx
//            //hInst = Marshal.GetHINSTANCE(this.GetType().Module);
//            //hIcon = WinApis.ExtractIcon(hInst, sb.ToString(), nIconIdx);
//            //if (hIcon == IntPtr.Zero)
//            //    return null;

//            //// Return a cloned Icon, because we have to free the original ourselves.
//            //ico = Icon.FromHandle(hIcon);
//            //clone = (Icon)ico.Clone();
//            //ico.Dispose();
//            //WinApis.DestroyIcon(hIcon);
//            ////clone: Url icon

//            //#if UNICODE
//            URL = Marshal.PtrToStringUni(str);
//            //#else
//            //            URL = Marshal.PtrToStringAnsi(str);
//            //#endif
//            Marshal.FreeCoTaskMem(str);

//            return URL;
//        }

//        public bool ClearHistory()
//        {
//            int hr = Hresults.S_OK;
//            Type urlhistorystg2type = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_CUrlHistory, true);
//            IUrlHistoryStg2 urlhistorystg2 = System.Activator.CreateInstance(urlhistorystg2type) as IUrlHistoryStg2;
//            if (urlhistorystg2 == null)
//                return false;
//            hr = urlhistorystg2.ClearHistory();
//            return (hr == Hresults.S_OK) ? true : false;
//        }

//        /// <summary>
//        /// Call this only once, as other calls are ignored by library.
//        /// Allow or disallow HTML dialogs launched using showModelessDialog() 
//        /// and showModalDialog() methods using CBT Window Hook.
//        /// Default, allow = true
//        /// </summary>
//        /// <param name="bAllow"></param>
//        public void SetAllowHTMLDialogs(bool bAllow)
//        {
//            if (this.DesignMode)
//                return;
//            if (bAllow)
//            {
//                if (m_CBT.IsHooked) //Unhook
//                {
//                    m_CBT.IsHooked = false;
//                    m_csexwbCOMLib.SetupWindowsHook(
//                        CSEXWBDLMANLib.WINDOWSHOOK_TYPES.WHT_CBT,
//                        (int)this.Handle.ToInt32(),
//                        m_CBT.IsHooked,
//                        ref m_CBT.UniqueMsgID);
//                }
//            }
//            else
//            {
//                if (!m_CBT.IsHooked) //Hook
//                {
//                    m_CBT.IsHooked = true;
//                    m_csexwbCOMLib.SetupWindowsHook(
//                        CSEXWBDLMANLib.WINDOWSHOOK_TYPES.WHT_CBT,
//                        (int)this.Handle.ToInt32(),
//                        m_CBT.IsHooked,
//                        ref m_CBT.UniqueMsgID);
//                }
//            }
//        }
//        public bool GetAllowHTMLDialogs()
//        {
//            return (m_CBT.IsHooked) ? false : true;
//        }

//        /// <summary>
//        /// Attempts to convert UNICODE chars to their numeric values
//        /// to be used with LoadHtmlIntoBrowser methods. sample
//        /// "&#1581;&#1602;&#1608;&#1602; &#1575;&#1604;&#1591;&#1576;&#1593;"
//        /// </summary>
//        /// <param name="html"></param>
//        /// <returns></returns>
//        public string UnicodeToHTMLEncoding(string html)
//        {
//            StringBuilder sb = new StringBuilder(html.Length * 7);
//            int i = 0;
//            const string pre = "&#";
//            const string post = ";";
//            foreach (char c in html)
//            {
//                i = (int)c;
//                if (i > 127) //Unicode
//                {
//                    sb.Append(pre);
//                    sb.Append(i.ToString()); //Use numeric value 1581
//                    sb.Append(post);
//                }
//                else
//                    sb.Append(c);
//            }
//            if (sb.Length > 0)
//                return sb.ToString();
//            else
//                return string.Empty;
//        }

//        /// <summary>
//        /// Clears session cookies
//        /// </summary>
//        /// <returns></returns>
//        public bool ClearSessionCookies()
//        {
//            return WinApis.InternetSetOption(IntPtr.Zero,
//                InternetSetOptionFlags.INTERNET_OPTION_END_BROWSER_SESSION,
//                IntPtr.Zero, 0);
//        }

//        /// <summary>
//        /// Adds a given url to the Internet explorer trusted zone
//        /// </summary>
//        /// <param name="url">format: http://msdn.microsoft.com</param>
//        /// <returns></returns>
//        public int AddUrlToTrustedZone(string url)
//        {
//            //Create a new InternetSecurityManager
//            Type ismtype = Type.GetTypeFromCLSID(Iid_Clsids.CLSID_InternetSecurityManager, true);
//            //Using Activator inplace of CoCreateInstance, returns IUnknown
//            IInternetSecurityManager ismhelper = System.Activator.CreateInstance(ismtype) as IInternetSecurityManager;
//            if (ismhelper == null)
//                return Hresults.S_FALSE;
//            return ismhelper.SetZoneMapping(
//                (int)(tagURLZONE.URLZONE_ESC_FLAG | tagURLZONE.URLZONE_TRUSTED),
//                url, (int)SZM_FLAGS.SZM_CREATE);
//        }

//        /// <summary>
//        /// Attempts to retreive UserAgent from
//        /// IHTMLWindow2.navigator object
//        /// </summary>
//        /// <returns></returns>
//        public string UserAgnet()
//        {
//            if (this.m_WBWebBrowser2 == null)
//                return string.Empty;

//            IHTMLDocument2 doc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            IHTMLWindow2 win2 = null;
//            IOmNavigator navigator = null;

//            if (doc2 == null)
//                return string.Empty;

//            win2 = doc2.parentWindow as IHTMLWindow2;
//            if (win2 == null)
//                return string.Empty;

//            navigator = win2.navigator;
//            if (navigator == null)
//                return string.Empty;
//            return navigator.userAgent;
//        }

//        /// <summary>
//        /// Attempts to set the optical zoom value. Example: 
//        /// <code>
//        /// m_CurWB.SetOpticalZoomValue(300);
//        /// </code>
//        /// </summary>
//        /// <param name="zoomvalue">Must be in the range 10 - 1000 percent</param>
//        /// <returns>One of Hresults.S_OK or S_FALSE</returns>
//        public int SetOpticalZoomValue(int zoomvalue)
//        {
//            if ((zoomvalue < 10) || (zoomvalue > 1000) || (m_WBOleCommandTarget == null))
//                return Hresults.S_FALSE;
//            IntPtr pRet = m_NullPointer;
//            int hr = Hresults.S_FALSE;

//            try
//            {
//                pRet = Marshal.AllocCoTaskMem((int)1024);
//                Marshal.GetNativeVariantForObject((int)zoomvalue, pRet);

//                hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                    (uint)OLECMDID.OLECMDID_OPTICAL_ZOOM,
//                    (uint)OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
//                    pRet, m_NullPointer);
//                Marshal.FreeCoTaskMem(pRet);
//                pRet = m_NullPointer;
//            }
//            catch (Exception)
//            {
//            }
//            finally
//            {
//                if (pRet != m_NullPointer)
//                    Marshal.FreeCoTaskMem(pRet);
//            }
//            return hr;
//        }

//        /// <summary>
//        /// Attempts to retreive optical zoom range. Example: 
//        /// <code>
//        /// int[] range = m_CurWB.GetOpticalZoomRange();
//        /// AllForms.m_frmLog.AppendToLog(
//        /// "Min==>" + range[0].ToString() + 
//        /// "\r\nMax==>" + range[1].ToString());
//        /// </code>
//        /// </summary>
//        /// <returns>Return int array index 0 = Min and index 1 = Max</returns>
//        public int[] GetOpticalZoomRange()
//        {
//            object retVal = new object(); //VT_NULL
//            IntPtr pRet = m_NullPointer;
//            int iZoom = (int)0;
//            int[] range = { 0, 0 };

//            if (m_WBOleCommandTarget == null)
//                return range;

//            try
//            {
//                pRet = Marshal.AllocCoTaskMem((int)1024);
//                Marshal.GetNativeVariantForObject(retVal, pRet);

//                //NULL to specify the standard group
//                int hr = m_WBOleCommandTarget.Exec(m_NullPointer,
//                    (uint)OLECMDID.OLECMDID_OPTICAL_GETZOOMRANGE,
//                    (uint)OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
//                    m_NullPointer, pRet);

//                retVal = Marshal.GetObjectForNativeVariant(pRet);
//                Marshal.FreeCoTaskMem(pRet);
//                pRet = m_NullPointer;
//                if (Type.GetTypeCode(retVal.GetType()) == TypeCode.Int32)
//                    iZoom = int.Parse(retVal.ToString());
//            }
//            catch (Exception)
//            {
//            }
//            finally
//            {
//                if (pRet != m_NullPointer)
//                    Marshal.FreeCoTaskMem(pRet);
//            }
//            if (iZoom > 0)
//            {
//                range[0] = WinApis.LoWord(iZoom); //Min
//                range[1] = WinApis.HiWord(iZoom); //Max
//            }
//            return range;
//        }

//        #endregion

//        #region Interfaces Implementation

//        #region IOleClientSite Members

//        int IOleClientSite.SaveObject()
//        {
//            return Hresults.E_NOTIMPL;
//            //throw new Exception("The method or operation is not implemented.");
//        }

//        int IOleClientSite.GetMoniker(uint dwAssign, uint dwWhichMoniker, out IMoniker ppmk)
//        {
//            ppmk = null;
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleClientSite.GetContainer(out IOleContainer ppContainer)
//        {
//            ppContainer = null;
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleClientSite.ShowObject()
//        {
//            return Hresults.S_OK;
//        }

//        int IOleClientSite.OnShowWindow(bool fShow)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleClientSite.RequestNewObjectLayout()
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        #endregion

//        #region IOleInPlaceSite Members

//        int IOleInPlaceSite.GetWindow(ref IntPtr phwnd)
//        {
//            phwnd = IntPtr.Zero;
//            if (this.IsHandleCreated)
//            {
//                phwnd = this.Handle;
//                return Hresults.S_OK;
//            }
//            else
//                return Hresults.E_FAIL;
//        }

//        int IOleInPlaceSite.ContextSensitiveHelp(bool fEnterMode)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.CanInPlaceActivate()
//        {
//            return Hresults.S_OK;
//        }

//        int IOleInPlaceSite.OnInPlaceActivate()
//        {
//            return Hresults.S_OK;
//        }

//        int IOleInPlaceSite.OnUIActivate()
//        {
//            if (!this.DesignMode)
//                m_ieServerWindow = new IEServerWindow(this);
//            return Hresults.S_OK;
//        }

//        int IOleInPlaceSite.GetWindowContext(out IOleInPlaceFrame ppFrame, out IOleInPlaceUIWindow ppDoc, ref tagRECT lprcPosRect, ref tagRECT lprcClipRect, ref tagOIFI lpFrameInfo)
//        {
//            ppDoc = null;
//            ppFrame = null;
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.Scroll(ref tagSIZE scrollExtent)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.OnUIDeactivate(bool fUndoable)
//        {
//            if ((!this.DesignMode) && (m_ieServerWindow != null))
//            {
//                m_ieServerWindow.Release();
//                m_ieServerWindow = null;
//            }
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.OnInPlaceDeactivate()
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.DiscardUndoState()
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.DeactivateAndUndo()
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IOleInPlaceSite.OnPosRectChange(ref tagRECT lprcPosRect)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        #endregion

//        #region IDocHostShowUI Members
//        //Can not catch VBScript MsgBox and InputBox functions and javascript prompt
//        //This does catch alert and confirm (VBScript as well)
//        int IDocHostShowUI.ShowMessage(IntPtr hwnd, string lpstrText,
//            string lpstrCaption, uint dwType,
//            string lpstrHelpFile, uint dwHelpContext, ref int lpResult)
//        {
//            //Initially
//            //lpResult is set 0 //S_OK

//            //Host did not display its UI. MSHTML displays its message box.
//            int iRet = Hresults.S_FALSE;

//            //raise event?
//            if (WBDocHostShowUIShowMessage != null)
//            {
//                //Refer to http://msdn2.microsoft.com/en-us/library/ms645505.aspx
//                //for possible values of dwType
//                DocHostShowUIShowMessageEvent.SetParameters(hwnd, lpstrText, lpstrCaption, dwType, lpstrHelpFile, dwHelpContext, lpResult);
//                WBDocHostShowUIShowMessage(this, DocHostShowUIShowMessageEvent);
//                if (DocHostShowUIShowMessageEvent.handled)
//                {
//                    //Host displayed its user interface (UI). MSHTML does not display its message box.
//                    iRet = Hresults.S_OK;
//                    lpResult = DocHostShowUIShowMessageEvent.result;
//                }
//                DocHostShowUIShowMessageEvent.Reset();
//            }
//            ////uncomment to use
//            //else
//            //{
//            //  lpResult = (int)WinApis.MessageBox(hwnd, lpstrText, lpstrCaption, dwType);
//            //  iRet = Hresults.S_OK;
//            //}
//            return iRet;
//        }

//        int IDocHostShowUI.ShowHelp(IntPtr hwnd, string pszHelpFile, uint uCommand, uint dwData, tagPOINT ptMouse, object pDispatchObjectHit)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        #endregion

//        #region IDocHostUIHandler Members

//        int IDocHostUIHandler.ShowContextMenu(uint dwID, ref tagPOINT pt, object pcmdtReserved, object pdispReserved)
//        {
//            //    return Hresults.S_OK; //Do not display context menu
//            //    return Hresults.S_FALSE; //Default IE ctxmnu

//            Point outpt = new Point(pt.X, pt.Y);
//            //Raise event
//            if (WBContextMenu != null)
//            {
//                ContextMenuEvent.SetParameters((WB_CONTEXTMENU_TYPES)dwID, outpt, pdispReserved);
//                WBContextMenu(this, ContextMenuEvent);
//                if (ContextMenuEvent.displaydefault == false) //Handled or don't display
//                    return Hresults.S_OK;
//                ContextMenuEvent.dispctxmenuobj = null;
//            }
//            return Hresults.S_FALSE;
//        }

//        int IDocHostUIHandler.GetHostInfo(ref DOCHOSTUIINFO info)
//        {
//            //Default, selecttext+no3dborder+flatscrollbars+themes(xp look)
//            //Size has be set
//            info.cbSize = (uint)Marshal.SizeOf(info);
//            info.dwDoubleClick = (uint)m_DocHostUiDbClkFlag;
//            info.dwFlags = (uint)m_DocHostUiFlags;
//            //info.pchHostCss = "BODY {background-color:#ffcccc}";
//            return Hresults.S_OK;
//        }

//        int IDocHostUIHandler.ShowUI(int dwID, IOleInPlaceActiveObject activeObject, IOleCommandTarget commandTarget, IOleInPlaceFrame frame, IOleInPlaceUIWindow doc)
//        {
//            //activeObject.GetWindow should return Internet Explorer_Server hwnd
//            if (activeObject != null)
//                activeObject.GetWindow(ref m_hWBServerHandle);
//            return Hresults.S_OK;
//        }

//        int IDocHostUIHandler.HideUI()
//        {
//            return Hresults.S_OK;
//        }

//        int IDocHostUIHandler.UpdateUI()
//        {
//            return Hresults.S_OK;
//        }

//        int IDocHostUIHandler.EnableModeless(bool fEnable)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.OnDocWindowActivate(bool fActivate)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.OnFrameWindowActivate(bool fActivate)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.ResizeBorder(ref tagRECT rect, IOleInPlaceUIWindow doc, bool fFrameWindow)
//        {
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.TranslateAccelerator(ref tagMSG msg, ref Guid group, uint nCmdID)
//        {
//            //    return Hresults.S_OK; //Cancel
//            //    return Hresults.S_FALSE; //IE default action
//            Keys nVirtExtKey = Keys.None; // (int)0;
//            if ((ModifierKeys & Keys.Control) != 0)
//                nVirtExtKey = Keys.ControlKey; //CONTROL 17
//            if ((ModifierKeys & Keys.ShiftKey) != 0)
//                nVirtExtKey = Keys.ShiftKey; //SHIFT 16
//            if ((ModifierKeys & Keys.Menu) != 0)
//                nVirtExtKey = Keys.Menu; //ALT 18
//            Keys keyCode = (Keys)msg.wParam;

//            if ((msg.message == WindowsMessages.WM_KEYDOWN) && (WBKeyDown != null))
//            {
//                WBKeyDownEvent.SetParameters(keyCode, nVirtExtKey);
//                WBKeyDown(this, WBKeyDownEvent);
//                if (WBKeyDownEvent.handled)
//                    return Hresults.S_OK;
//            }
//            if ((msg.message == WindowsMessages.WM_KEYUP) && (WBKeyUp != null))
//            {
//                WBKeyUpEvent.SetParameters(keyCode, nVirtExtKey);
//                WBKeyUp(this, WBKeyUpEvent);
//                if (WBKeyUpEvent.handled == true)
//                    return Hresults.S_OK;
//            }
//            //IE default action
//            return Hresults.S_FALSE;
//        }

//        int IDocHostUIHandler.GetOptionKeyPath(out string pbstrKey, uint dw)
//        {
//            //pbstrKey[0] = null;
//            pbstrKey = null;
//            if (WBGetOptionKeyPath != null)
//            {
//                GetOptionKeyPathEvent.SetParameters();
//                WBGetOptionKeyPath(this, GetOptionKeyPathEvent);
//                if (GetOptionKeyPathEvent.handled == true)
//                {
//                    pbstrKey = GetOptionKeyPathEvent.keypath;
//                    GetOptionKeyPathEvent.SetParameters();
//                    return Hresults.S_OK;
//                }
//            }
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.GetDropTarget(IfacesEnumsStructsClasses.IDropTarget pDropTarget, out IfacesEnumsStructsClasses.IDropTarget ppDropTarget)
//        {
//            int hret = Hresults.E_NOTIMPL;
//            ppDropTarget = null;
//            if (m_bUseInternalDragDrop)
//            {
//                ppDropTarget = this as IfacesEnumsStructsClasses.IDropTarget;
//                if (ppDropTarget != null)
//                    hret = Hresults.S_OK;
//            }
//            return hret;
//        }

//        int IDocHostUIHandler.GetExternal(out object ppDispatch)
//        {
//            if (m_WinExternal != null)
//            {
//                ppDispatch = m_WinExternal;
//                return Hresults.S_OK;
//            }
//            else
//            {
//                ppDispatch = null;
//                return Hresults.E_NOTIMPL;
//            }
//        }

//        int IDocHostUIHandler.TranslateUrl(uint dwTranslate, string strURLIn, out string pstrURLOut)
//        {
//            pstrURLOut = null;
//            return Hresults.E_NOTIMPL;
//        }

//        int IDocHostUIHandler.FilterDataObject(System.Runtime.InteropServices.ComTypes.IDataObject pDO, out System.Runtime.InteropServices.ComTypes.IDataObject ppDORet)
//        {
//            ppDORet = null;
//            return Hresults.E_NOTIMPL;
//        }

//        #endregion

//        #region DWebBrowserEvents2 Members

//        [System.Runtime.InteropServices.DispId(250)]
//        void DWebBrowserEvents2.BeforeNavigate2(object pDisp, ref object URL, ref object Flags, ref object TargetFrameName, ref object PostData, ref object Headers, ref bool Cancel)
//        {
//            //For catching Refresh and coordinating events
//            m_nPageCounter++;
//            bool bTopFrame = m_WBWebBrowser2.Equals(pDisp);

//            if (bTopFrame)
//                m_DocDone = false;

//            //Want events
//            if (m_WantHTMLEvents)
//            {
//                //Top level
//                if (bTopFrame)
//                {
//                    if (m_WantHtmlDocumentEvents)
//                        m_TopLevelHtmlDocumentevents.DisconnectHtmlEvents();
//                    if (m_WantHtmlWindowEvents)
//                        m_TopLevelHtmlWindowEvents.DisconnectHtmlEvents();
//                }
//                else //Secondary pages (frameset)
//                {
//                    //Want events and we don't bother with navigation within framesets
//                    if ((m_WantHtmlDocumentEvents) && (m_nPageCounter > 1))
//                        DisconnectHtmlDocumentEvents();

//                    if ((m_WantHtmlWindowEvents) && (m_nPageCounter > 1))
//                        DisconnectHtmlWindowEvnets();
//                }
//            }

//            if (BeforeNavigate2 != null)
//            {
//                //Reserved, must be set to null
//                Flags = null;
//                BeforeNavigate2Event.SetParameters(pDisp, URL.ToString(), TargetFrameName, PostData, Headers, bTopFrame);
//                BeforeNavigate2(this, BeforeNavigate2Event);
//                Cancel = BeforeNavigate2Event.Cancel;
//                BeforeNavigate2Event.Reset();
//            }
//        }

//        [DispId(268)]
//        void DWebBrowserEvents2.ClientToHostWindow(ref int CX, ref int CY)
//        {
//            if (ClientToHostWindow != null)
//            {
//                ClientToHostWindowEvent.SetParameters(CX, CY);
//                ClientToHostWindow(this, ClientToHostWindowEvent);
//                if (ClientToHostWindowEvent.handled == true)
//                {
//                    CX = ClientToHostWindowEvent.cx;
//                    CY = ClientToHostWindowEvent.cy;
//                }
//            }
//        }

//        [DispId(105)]
//        void DWebBrowserEvents2.CommandStateChange(int Command, bool Enable)
//        {
//            if (Command == (int)CommandStateChangeConstants.CSC_NAVIGATEBACK)
//                m_bCanGoBack = Enable;
//            else if (Command == (int)CommandStateChangeConstants.CSC_NAVIGATEFORWARD)
//                m_bCanGoForward = Enable;

//            if (CommandStateChange != null)
//            {
//                CommandStateChangeEvent.SetParameters(Command, Enable);
//                CommandStateChange(this, CommandStateChangeEvent);
//            }
//        }

//        [DispId(104)]
//        void DWebBrowserEvents2.DocumentComplete(object pDisp, ref object URL)
//        {
//            m_nPageCounter--;

//            bool bTopFrame = m_WBWebBrowser2.Equals(pDisp);
//            if (bTopFrame)
//                m_DocDone = true;

//            if (m_WantHTMLEvents)
//            {
//                IHTMLDocument2 doc2 = null;
//                if (bTopFrame)
//                {
//                    doc2 = (IHTMLDocument2)m_WBWebBrowser2.Document;
//                    if (m_WantHtmlDocumentEvents)
//                        m_TopLevelHtmlDocumentevents.ConnectToHtmlEvents(doc2);
//                    if (m_WantHtmlWindowEvents)
//                    {
//                        IHTMLWindow2 win2 = (IHTMLWindow2)doc2.parentWindow;
//                        m_TopLevelHtmlWindowEvents.ConnectToHtmlEvents(win2);
//                    }
//                }
//                else
//                {
//                    //Nav within frameset, don't bother
//                    //Uses the same document object
//                    if (m_nPageCounter > 0)
//                    {
//                        IWebBrowser2 wb2 = (IWebBrowser2)pDisp;
//                        doc2 = (IHTMLDocument2)wb2.Document;
//                        if (m_WantHtmlDocumentEvents)
//                        {
//                            cHTMLDocumentEvents doceve = null;
//                            ActivateSecondaryHtmlDocumentEvents(ref doceve);
//                            if (doceve != null)
//                                doceve.ConnectToHtmlEvents(doc2);
//                        }
//                        if (m_WantHtmlWindowEvents)
//                        {
//                            cHTMLWindowEvents wineve = null;
//                            IHTMLWindow2 win2 = (IHTMLWindow2)doc2.parentWindow;
//                            ActivateSecondaryHtmlWindowEvents(ref wineve);
//                            if (wineve != null)
//                                wineve.ConnectToHtmlEvents(win2);
//                        }
//                    }
//                }
//            }

//            if (m_bSendSourceOnDocumentCompleteWBEx) //want source?
//            {
//                if (DocumentCompleteEX != null)
//                {
//                    //Declare vars
//                    string strSource = "";
//                    IWebBrowser2 thisBrowser = null;

//                    //Reset event object parameters
//                    DocumentCompleteExEvent.SetParameters(pDisp, URL.ToString(), bTopFrame, strSource);

//                    //Attempt to get a IWebBrowser2 iface from disp
//                    //throws an exception if not an html doc
//                    thisBrowser = (IWebBrowser2)pDisp;
//                    if (thisBrowser == null)
//                        return;

//                    strSource = GetSource(thisBrowser);
//                    DocumentCompleteExEvent.docsource = strSource;
//                    DocumentCompleteEX(this, DocumentCompleteExEvent);
//                    DocumentCompleteExEvent.Reset();
//                }
//            }
//            else if (DocumentComplete != null) //Do not want source
//            {
//                DocumentCompleteEvent.SetParameters(pDisp, URL.ToString(), bTopFrame);
//                DocumentComplete(this, DocumentCompleteEvent);
//                DocumentCompleteEvent.Reset();
//            }
//            //Go to MSDN library(archive) + stop + refresh
//            //without this, refresh end hits somewhere in between documentCompletes
//            if ((m_bIsRefresh) && (m_nPageCounter == 0) && (m_nObjCounter == 0))
//            {
//                m_bIsRefresh = false;
//                if (RefreshEnd != null)
//                    RefreshEnd(this);
//            }
//        }

//        [DispId(106)]
//        void DWebBrowserEvents2.DownloadBegin()
//        {
//            m_nObjCounter++;
//            if (DownloadBegin != null)
//                DownloadBegin(this);
//            if (m_nPageCounter == 0)
//            {
//                m_bIsRefresh = true;
//                if (RefreshBegin != null)
//                    RefreshBegin(this);
//            }
//        }

//        [DispId(259)]
//        void DWebBrowserEvents2.DownloadComplete()
//        {
//            m_nObjCounter--;
//            if (DownloadComplete != null)
//                DownloadComplete(this);
//            if ((m_bIsRefresh) && (m_nPageCounter == 0) && (m_nObjCounter == 0))
//            {
//                m_bIsRefresh = false;
//                if (RefreshEnd != null)
//                    RefreshEnd(this);
//            }
//        }

//        [DispId(270)]
//        void DWebBrowserEvents2.FileDownload(bool ActiveDocument, ref bool Cancel)
//        {
//            if ((FileDownload != null) && (m_UseInternalDownloadManager == false))
//            {
//                FileDownloadEvent.Cancel = false;
//                FileDownloadEvent.ActiveDocument = ActiveDocument;
//                FileDownload(this, FileDownloadEvent);
//                Cancel = FileDownloadEvent.Cancel;
//            }
//        }

//        [DispId(252)]
//        void DWebBrowserEvents2.NavigateComplete2(object pDisp, ref object URL)
//        {
//            if (NavigateComplete2 != null)
//            {
//                NavigateComplete2Event.SetParameters(pDisp, URL.ToString());
//                NavigateComplete2(this, NavigateComplete2Event);
//                NavigateComplete2Event.Reset();
//            }
//        }

//        [DispId(271)]
//        void DWebBrowserEvents2.NavigateError(object pDisp, ref object URL, ref object Frame, ref object StatusCode, ref bool Cancel)
//        {
//            if (NavigateError != null)
//            {
//                if (Frame != null) //Thank you Arjan
//                    NavigateErrorEvent.SetParameters(pDisp, URL.ToString(), Frame.ToString(), (int)StatusCode);
//                else
//                    NavigateErrorEvent.SetParameters(pDisp, URL.ToString(), string.Empty, (int)StatusCode);
//                NavigateError(this, NavigateErrorEvent);
//                Cancel = NavigateErrorEvent.Cancel;
//                NavigateErrorEvent.Reset();
//            }
//        }

//        [DispId(251)]
//        void DWebBrowserEvents2.NewWindow2(ref object ppDisp, ref bool Cancel)
//        {
//            if (NewWindow2 != null)
//            {
//                NewWindow2Event.SetParameters();
//                NewWindow2(this, NewWindow2Event);
//                Cancel = NewWindow2Event.Cancel;
//                if ((!Cancel) && (NewWindow2Event.browser != null))
//                {
//                    ppDisp = NewWindow2Event.browser;
//                }
//                NewWindow2Event.SetParameters();
//            }
//        }

//        [DispId(0x111)]
//        void DWebBrowserEvents2.NewWindow3(ref object ppDisp, ref bool Cancel, uint dwFlags, string bstrUrlContext, string bstrUrl)
//        {

//            if (NewWindow3 != null)
//            {
//                NewWindow3Event.SetParameters(bstrUrlContext, bstrUrl, (NWMF)dwFlags);
//                NewWindow3(this, NewWindow3Event);
//                Cancel = NewWindow3Event.Cancel;
//                if ((!Cancel) && (NewWindow3Event.browser != null))
//                {
//                    ppDisp = NewWindow3Event.browser;
//                }
//                NewWindow3Event.Reset();
//            }
//        }

//        #region Unused Events
//        void DWebBrowserEvents2.OnFullScreen(bool FullScreen)
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnMenuBar(bool MenuBar)
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnQuit()
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnStatusBar(bool StatusBar)
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnTheaterMode(bool TheaterMode)
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnToolBar(bool ToolBar)
//        {
//            //
//        }

//        void DWebBrowserEvents2.OnVisible(bool Visible)
//        {
//            //
//        }
//        #endregion

//        [DispId(227)]
//        void DWebBrowserEvents2.UpdatePageStatus(object pDisp, ref object nPage, ref object fDone)
//        {
//            if (UpdatePageStatus != null)
//            {
//                if (nPage != null)
//                    UpdatePageStatusEvent.SetParameters(pDisp, (int)nPage, (bool)fDone);
//                else
//                    UpdatePageStatusEvent.SetParameters(pDisp, 0, (bool)fDone);
//                UpdatePageStatus(this, UpdatePageStatusEvent);
//                UpdatePageStatusEvent.Reset();
//            }
//        }

//        [DispId(225)]
//        void DWebBrowserEvents2.PrintTemplateInstantiation(object pDisp)
//        {
//            if (PrintTemplateInstantiation != null)
//            {
//                PrintTemplateInstantiationEvent.browser = pDisp;
//                PrintTemplateInstantiation(this, PrintTemplateInstantiationEvent);
//                PrintTemplateInstantiationEvent.browser = null;
//            }
//        }

//        [DispId(226)]
//        void DWebBrowserEvents2.PrintTemplateTeardown(object pDisp)
//        {
//            if (PrintTemplateTeardown != null)
//            {
//                PrintTemplateTeardownEvent.browser = pDisp;
//                PrintTemplateTeardown(this, PrintTemplateTeardownEvent);
//                PrintTemplateTeardownEvent.browser = null;
//            }
//        }

//        [DispId(272)]
//        void DWebBrowserEvents2.PrivacyImpactedStateChange(bool bImpacted)
//        {
//            if (PrivacyImpactedStateChange != null)
//            {
//                PrivacyImpactedStateChangeEvent.impacted = bImpacted;
//                PrivacyImpactedStateChange(this, PrivacyImpactedStateChangeEvent);
//            }
//        }

//        [DispId(108)]
//        void DWebBrowserEvents2.ProgressChange(int Progress, int ProgressMax)
//        {
//            if (ProgressChange != null)
//            {
//                ProgressChangeEvent.SetParameters(Progress, ProgressMax);
//                ProgressChange(this, ProgressChangeEvent);
//            }
//        }

//        [DispId(112)]
//        void DWebBrowserEvents2.PropertyChange(string szProperty)
//        {
//            if (PropertyChange != null)
//            {
//                PropertyChangeEvent.szproperty = szProperty;
//                PropertyChange(this, PropertyChangeEvent);
//                PropertyChangeEvent.szproperty = string.Empty;
//            }
//        }

//        [DispId(269)]
//        void DWebBrowserEvents2.SetSecureLockIcon(int SecureLockIcon)
//        {
//            m_SecureLockIcon = SecureLockIcon;
//            if (SetSecureLockIcon != null)
//            {
//                SetSecureLockIconEvent.SetParameters(SecureLockIcon);
//                SetSecureLockIcon(this, SetSecureLockIconEvent);
//            }
//        }

//        [DispId(102)]
//        void DWebBrowserEvents2.StatusTextChange(string Text)
//        {
//            if (StatusTextChange != null)
//            {
//                StatusTextChangeEvent.text = Text;
//                StatusTextChange(this, StatusTextChangeEvent);
//                StatusTextChangeEvent.text = string.Empty;
//            }
//        }

//        [DispId(113)]
//        void DWebBrowserEvents2.TitleChange(string Text)
//        {
//            if (TitleChange != null)
//            {
//                TitleChangeEvent.title = Text;
//                TitleChange(this, TitleChangeEvent);
//                TitleChangeEvent.title = "";
//            }
//        }

//        //DWebBrowserEvents2.WindowClosing is never called?
//        //So here is the workaround
//        [DispId(263)]
//        public void DISPATCH_WindowClosing(bool IsChildWindow, ref bool Cancel)
//        {
//            if (WindowClosing != null)
//            {
//                WindowClosingEvent.SetParameters(IsChildWindow);
//                WindowClosing(this, WindowClosingEvent);
//                Cancel = WindowClosingEvent.Cancel;
//            }
//        }

//        [DispId(263)]
//        void DWebBrowserEvents2.WindowClosing(bool IsChildWindow, ref bool Cancel)
//        {
//        }

//        [DispId(267)]
//        void DWebBrowserEvents2.WindowSetHeight(int Height)
//        {
//            if (WindowSetHeight != null)
//            {
//                WindowSetHeightEvent.height = Height;
//                WindowSetHeight(this, WindowSetHeightEvent);
//            }
//        }

//        [DispId(264)]
//        void DWebBrowserEvents2.WindowSetLeft(int Left)
//        {
//            if (WindowSetLeft != null)
//            {
//                WindowSetLeftEvent.left = Left;
//                WindowSetLeft(this, WindowSetLeftEvent);
//            }
//        }

//        [DispId(262)]
//        void DWebBrowserEvents2.WindowSetResizable(bool Resizable)
//        {
//            if (WindowSetResizable != null)
//            {
//                WindowSetResizableEvent.resizable = Resizable;
//                WindowSetResizable(this, WindowSetResizableEvent);
//            }
//        }

//        [DispId(265)]
//        void DWebBrowserEvents2.WindowSetTop(int Top)
//        {
//            if (WindowSetTop != null)
//            {
//                WindowSetTopEvent.top = Top;
//                WindowSetTop(this, WindowSetTopEvent);
//            }
//        }

//        [DispId(266)]
//        void DWebBrowserEvents2.WindowSetWidth(int Width)
//        {
//            if (WindowSetWidth != null)
//            {
//                WindowSetWidthEvent.width = Width;
//                WindowSetWidth(this, WindowSetWidthEvent);
//            }
//        }

//        #endregion

//        #region IDropTarget Members

//        int IfacesEnumsStructsClasses.IDropTarget.DragEnter(System.Runtime.InteropServices.ComTypes.IDataObject pDataObj, uint grfKeyState, tagPOINT pt, ref uint pdwEffect)
//        {
//            if (WBDragEnter != null)
//            {
//                DataObject obja = null;
//                if (pDataObj != null)
//                    obja = new DataObject(pDataObj);
//                Point ppt = new Point(pt.X, pt.Y);
//                WBDragEnterEvent.SetParameters(obja, grfKeyState, ppt, pdwEffect);
//                WBDragEnter(this, WBDragEnterEvent);
//                if (WBDragEnterEvent.handled == true)
//                    pdwEffect = (uint)WBDragEnterEvent.dropeffect;
//            }
//            return Hresults.S_OK;
//        }
//        int IfacesEnumsStructsClasses.IDropTarget.DragOver(uint grfKeyState, tagPOINT pt, ref uint pdwEffect)
//        {
//            if (WBDragOver != null)
//            {
//                Point ppt = new Point(pt.X, pt.Y);
//                WBDragOverEvent.SetParameters(grfKeyState, ppt, pdwEffect);
//                WBDragOver(this, WBDragOverEvent);
//                if (WBDragOverEvent.handled == true)
//                    pdwEffect = (uint)WBDragOverEvent.dropeffect;
//            }
//            return Hresults.S_OK;
//        }
//        int IfacesEnumsStructsClasses.IDropTarget.DragLeave()
//        {
//            if (WBDragLeave != null)
//                WBDragLeave(this);
//            return Hresults.S_OK;
//        }
//        int IfacesEnumsStructsClasses.IDropTarget.Drop(System.Runtime.InteropServices.ComTypes.IDataObject pDataObj, uint grfKeyState, tagPOINT pt, ref uint pdwEffect)
//        {
//            if (pDataObj == null)
//                return Hresults.S_OK;
//            if (WBDragDrop != null)
//            {
//                DataObject obja = new DataObject(pDataObj);
//                Point ppt = new Point(pt.X, pt.Y);
//                WBDropEvent.SetParameters(grfKeyState, ppt, obja, pdwEffect);
//                WBDragDrop(this, WBDropEvent);
//                if (WBDropEvent.handled == true)
//                    pdwEffect = (uint)WBDropEvent.dropeffect;
//            }
//            return Hresults.S_OK;
//        }

//        #endregion

//        #region IOleCommandTarget Members

//        int IOleCommandTarget.QueryStatus(IntPtr pguidCmdGroup, uint cCmds, ref tagOLECMD prgCmds, IntPtr pCmdText)
//        {
//            //int hr = Hresults.S_OK;
//            //if (m_WBOleCommandTarget != null)
//            //{
//            //    try
//            //    {
//            //        hr = m_WBOleCommandTarget.QueryStatus(pguidCmdGroup,
//            //            cCmds, ref prgCmds, ref pCmdText);
//            //    }
//            //    finally
//            //    {
//            //    }
//            //}
//            //else
//            //    hr = OLECMDERR_E_NOTSUPPORTED;
//            return Hresults.OLECMDERR_E_NOTSUPPORTED;
//        }

//        //pguidCmdGroup must be declared as IntPtr not a GUID, as pguidCmdGroup may be null, hence generating execption
//        int IOleCommandTarget.Exec(IntPtr pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
//        {
//            int hr = Hresults.S_OK;

//            if ((pguidCmdGroup != m_NullPointer) &&
//                (Type.GetTypeCode(pguidCmdGroup.GetType()) != TypeCode.Empty))
//            {
//                try
//                {
//                    ////Allocate mem for a GUID
//                    //byte[] bguid = Guid.Empty.ToByteArray();
//                    ////Copy incoming into byte array
//                    //Marshal.Copy(pguidCmdGroup, bguid, 0, bguid.Length);
//                    ////back to GUID
//                    //Guid guid = new Guid(bguid);

//                    Guid guid = (Guid)Marshal.PtrToStructure(pguidCmdGroup, typeof(Guid));

//                    //Only group we are interested
//                    if (guid == Iid_Clsids.CLSID_CGID_DocHostCommandHandler)
//                    {
//                        //http://support.microsoft.com/kb/261003
//                        if (nCmdID == (int)OLECMDID.OLECMDID_SHOWSCRIPTERROR)
//                        {
//                            //Default Continue running scripts
//                            if (pvaOut != IntPtr.Zero)
//                                Marshal.GetNativeVariantForObject(true, pvaOut);
//                            //false -> stop running scripts
//                            if (ScriptError != null)
//                            {
//                                ScriptErrorEvent.SetParameters();
//                                try
//                                {
//                                    IHTMLDocument2 doc2 = (IHTMLDocument2)Marshal.GetObjectForNativeVariant(pvaIn);
//                                    IHTMLWindow2 win2 = (IHTMLWindow2)doc2.parentWindow;
//                                    IHTMLEventObj2 eveobj = (IHTMLEventObj2)win2.eventobj;

//                                    if (eveobj != null)
//                                    {
//                                        ScriptErrorEvent.lineNumber = (int)eveobj.getAttribute("errorLine", 0);
//                                        ScriptErrorEvent.characterNumber = (int)eveobj.getAttribute("errorCharacter", 0);
//                                        ScriptErrorEvent.errorCode = (int)eveobj.getAttribute("errorCode", 0);
//                                        ScriptErrorEvent.errorMessage = eveobj.getAttribute("errorMessage", 0) as string;
//                                        ScriptErrorEvent.url = eveobj.getAttribute("errorUrl", 0) as string;
//                                    }
//                                }
//                                catch (Exception)
//                                {
//                                }
//                                ScriptError(this, ScriptErrorEvent);
//                                if (pvaOut != IntPtr.Zero)
//                                    Marshal.GetNativeVariantForObject(ScriptErrorEvent.continueScripts, pvaOut);
//                                ScriptErrorEvent.SetParameters();
//                            }
//                        }
//                        else
//                            hr = Hresults.OLECMDERR_E_NOTSUPPORTED;
//                    }
//                    else
//                        hr = Hresults.OLECMDERR_E_UNKNOWNGROUP;
//                }
//                catch (Exception)
//                {
//                    hr = Hresults.OLECMDERR_E_UNKNOWNGROUP;
//                }
//            }
//            else
//                hr = Hresults.OLECMDERR_E_UNKNOWNGROUP;
//            return hr;
//        }

//        #endregion

//        #region IServiceProvider Members

//        int IfacesEnumsStructsClasses.IServiceProvider.QueryService(ref Guid guidService, ref Guid riid, out IntPtr ppvObject)
//        {
//            int hr = Hresults.E_NOINTERFACE;
//            ppvObject = m_NullPointer;

//            if ((guidService == Iid_Clsids.SID_SDownloadManager) &&
//                (riid == Iid_Clsids.IID_IDownloadManager) &&
//                (m_UseInternalDownloadManager))
//            {
//                AddThisIEServerHwndToComLib();
//                //QI for IDownloadManager interface from our COM object
//                ppvObject = Marshal.GetComInterfaceForObject(m_csexwbCOMLib, typeof(IDownloadManager));
//                hr = Hresults.S_OK;
//            }
//            else if (riid == Iid_Clsids.IID_IHttpSecurity)
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IHttpSecurity));
//                hr = Hresults.S_OK;

//                //Ulternative
//                //try
//                //{
//                //    m_pUnk = IntPtr.Zero;
//                //    m_pTargetIface = IntPtr.Zero;
//                //    m_pUnk = Marshal.GetIUnknownForObject(this);
//                //    Marshal.QueryInterface(m_pUnk, ref IID_IHttpSecurity, out m_pTargetIface);
//                //    Marshal.Release(m_pUnk);
//                //    ppvObject = m_pTargetIface;
//                //    hr = Hresults.S_OK;
//                //}
//                //catch (Exception)
//                //{
//                //}
//            }
//            else if (riid == Iid_Clsids.IID_INewWindowManager) //xpsp2
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(INewWindowManager));
//                hr = Hresults.S_OK;
//            }
//            else if (riid == Iid_Clsids.IID_IWindowForBindingUI)
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IWindowForBindingUI));
//                hr = Hresults.S_OK;
//            }
//            else if (guidService == Iid_Clsids.IID_IInternetSecurityManager)
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IInternetSecurityManager));
//                hr = Hresults.S_OK;
//            }
//            else if ((guidService == Iid_Clsids.IID_IAuthenticate)
//               && (riid == Iid_Clsids.IID_IAuthenticate))
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IAuthenticate));
//                hr = Hresults.S_OK;
//            }
//            else if (riid == Iid_Clsids.IID_IProtectFocus) //IE7 + Vista
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IProtectFocus));
//                hr = Hresults.S_OK;
//            }
//            else if ((riid == Iid_Clsids.IID_IHTMLOMWindowServices) &&
//                (guidService == Iid_Clsids.IID_IHTMLOMWindowServices))
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IHTMLOMWindowServices));
//                hr = Hresults.S_OK;
//            }
//            else if ((riid == Iid_Clsids.IID_IHTMLEditHost) &&
//                (guidService == Iid_Clsids.SID_SHTMLEditHost))
//            {
//                ppvObject = Marshal.GetComInterfaceForObject(this, typeof(IHTMLEditHost));
//                hr = Hresults.S_OK;
//            }

//            return hr;
//        }

//        #endregion

//        #region IHttpSecurity Members

//        int IHttpSecurity.GetWindow(ref Guid rguidReason, ref IntPtr phwnd)
//        {
//            phwnd = m_NullPointer;
//            int hr = Hresults.S_FALSE;
//            if ((rguidReason == Iid_Clsids.IID_IHttpSecurity) || (rguidReason == Iid_Clsids.IID_IAuthenticate))
//            {
//                if (!WBIEServerHandle().Equals(m_NullPointer))
//                {
//                    phwnd = m_hWBServerHandle;
//                    hr = Hresults.S_OK;
//                }
//            }
//            return hr;
//        }
//        int IHttpSecurity.OnSecurityProblem(uint dwProblem)
//        {
//            /*
//            IHttpSecurity, Some possible problems:
//                ERROR_INTERNET_SEC_CERT_DATE_INVALID
//                ERROR_INTERNET_SEC_CERT_CN_INVALID
//                ERROR_INTERNET_HTTP_TO_HTTPS_ON_REDIR
//                ERROR_INTERNET_HTTPS_TO_HTTP_ON_REDIR
//                ERROR_HTTP_REDIRECT_NEEDS_CONFIRMATION
//                ERROR_INTERNET_INVALID_CA
//                ERROR_INTERNET_CLIENT_AUTH_CERT_NEEDED
//            Implementing this method incorrectly can compromise the security of your application.
//            Returning a value of RPC_E_RETRY can potentially leave users of your application exposed
//            to unwanted information disclosure. RPC_E_RETRY should only be returned when
//            the application is running on a known trusted server or after you have verified
//            information from the user.

//            Returning S_FALSE implies that you have asked the user
//            if it is ok to proceed despite a security problem and they have agreed
//            return RPC_E_RETRY;
//            Retries using Registry options and most likely fails again
//            */

//            //dwProblem one of WinInetErrors enum (need more additions)
//            int iRet = Hresults.S_FALSE;
//            int hr = iRet;
//            if (WBSecurityProblem != null)
//            {
//                SecurityProblemEvent.SetParameters((int)dwProblem);
//                WBSecurityProblem(this, SecurityProblemEvent);
//                //Possible ret values
//                if (SecurityProblemEvent.handled == true)
//                {
//                    iRet = SecurityProblemEvent.retvalue;
//                    if ((iRet == Hresults.RPC_E_RETRY) || (iRet == Hresults.S_FALSE) || (iRet == Hresults.E_ABORT))
//                        hr = iRet;
//                }
//            }
//            //Possible return values;
//            //RPC_E_RETRY (cautious) The calling application should continue or retry the download. 
//            //S_FALSE The calling application should open a dialog box to warn the user. 
//            //E_ABORT The calling application should abort the download.
//            return hr;
//        }

//        #endregion

//        #region IWindowForBindingUI Members

//        int IWindowForBindingUI.GetWindow(ref Guid rguidReason, ref IntPtr phwnd)
//        {
//            phwnd = m_NullPointer;
//            int hr = Hresults.S_FALSE;
//            if ((rguidReason == Iid_Clsids.IID_IHttpSecurity) || (rguidReason == Iid_Clsids.IID_IAuthenticate))
//            {
//                if (!WBIEServerHandle().Equals(m_NullPointer))
//                {
//                    phwnd = m_hWBServerHandle;
//                    hr = Hresults.S_OK;
//                }
//            }
//            return hr;
//        }

//        #endregion

//        #region INewWindowManager Members

//        int INewWindowManager.EvaluateNewWindow(string pszUrl, string pszName,
//            string pszUrlContext, string pszFeatures, bool fReplace, uint dwFlags, uint dwUserActionTime)
//        {
//            int hr = Hresults.E_FAIL; //To perform default IE action - Calls NewWindow3 else NewWindow2 else shows popup
//            if (WBEvaluteNewWindow != null)
//            {
//                EvaluateNewWindowEvent.SetParameters(pszUrl, pszName, pszUrlContext, pszFeatures, fReplace, (int)dwFlags, (int)dwUserActionTime);
//                WBEvaluteNewWindow(this, EvaluateNewWindowEvent);
//                if (EvaluateNewWindowEvent.Cancel == true)
//                    hr = Hresults.S_FALSE; //Block
//                //hr = Hresults.S_OK; //Allow all
//                EvaluateNewWindowEvent.Reset();
//            }
//            return hr;
//        }

//        #endregion

//        #region IAuthenticate Members

//        //To pass a doamin as in a NTLM authentication scheme, use this format: Username = Domain\username
//        int IAuthenticate.Authenticate(ref IntPtr phwnd, ref IntPtr pszUsername, ref IntPtr pszPassword)
//        {
//            int hr = Hresults.E_ACCESSDENIED; //to abort, to proceed Hresults.S_OK
//            int iRet = hr; //Assume failure
//            phwnd = this.Handle;
//            pszUsername = IntPtr.Zero;
//            pszPassword = IntPtr.Zero;
//            if (WBAuthenticate != null)
//            {
//                AuthenticateEvent.SetParameters();
//                WBAuthenticate(this, AuthenticateEvent);
//                if (AuthenticateEvent.handled == true)
//                {
//                    //Marshal.StringToCoTaskMemAuto
//                    pszUsername = Marshal.StringToCoTaskMemUni(AuthenticateEvent.username);
//                    pszPassword = Marshal.StringToCoTaskMemUni(AuthenticateEvent.password);
//                    iRet = AuthenticateEvent.retvalue; //Should be 0
//                }
//                //Reset
//                AuthenticateEvent.SetParameters();
//                //accepted return values
//                if ((iRet == Hresults.S_OK) || (iRet == Hresults.E_INVALIDARG) || (iRet == Hresults.E_ACCESSDENIED))
//                    hr = iRet;
//            }
//            return hr;
//        }

//        #endregion

//        #region IInternetSecurityManager Members

//        int IInternetSecurityManager.SetSecuritySite(IntPtr pSite)
//        {
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        int IInternetSecurityManager.GetSecuritySite(out IntPtr pSite)
//        {
//            pSite = IntPtr.Zero;
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        int IInternetSecurityManager.MapUrlToZone(string pwszUrl, out uint pdwZone, uint dwFlags)
//        {
//            // All URLs are on the local machine - most trusted and return S_OK;
//            //pdwZone = (uint)tagURLZONE.URLZONE_LOCAL_MACHINE;
//            //pdwZone =  (uint)tagURLZONE.URLZONE_INTRANET;
//            //pdwZone =  (uint)tagURLZONE.URLZONE_TRUSTED; //....
//            //return Hresults.S_OK;

//            pdwZone = 0;
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        //private const string m_strSecurity = "None:localhost+My Computer";
//        int IInternetSecurityManager.GetSecurityId(string pwszUrl, IntPtr pbSecurityId, ref uint pcbSecurityId, ref uint dwReserved)
//        {
//            //pbSecurityId = Marshal.StringToCoTaskMemAnsi(m_strSecurity);
//            //pcbSecurityId = (uint)m_strSecurity.Length;
//            //return Hresults.S_OK;
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        /*
//        MSDN:
//        The current list of URLACTION that will not be passed to the custom security manager
//        in most circumstances by Internet Explorer 5 are:
//            URLACTION_SHELL_FILE_DOWNLOAD 
//            URLACTION_COOKIES 
//            URLACTION_JAVA_PERMISSIONS 
//            URLACTION_SCRIPT_PASTE 
//        There is no workaround for this problem. The behavior for the URLACTION can only be
//        changed for all browser clients on the system by altering the security zone settings
//        from Internet Options.
//        */
//        int IInternetSecurityManager.ProcessUrlAction(string pwszUrl, uint dwAction, IntPtr pPolicy, uint cbPolicy, IntPtr pContext, uint cbContext, uint dwFlags, uint dwReserved)
//        {
//            if (ProcessUrlAction == null)
//                return (int)WinInetErrors.INET_E_DEFAULT_ACTION;

//            try
//            {
//                URLACTION action = (URLACTION)dwAction;
//                ProcessUrlActionFlags flags = (ProcessUrlActionFlags)dwFlags;
//                bool hasUrlPolicy = (cbPolicy >= unchecked((uint)Marshal.SizeOf(typeof(int))));
//                URLPOLICY urlPolicy = (hasUrlPolicy) ? urlPolicy = (URLPOLICY)Marshal.ReadInt32(pPolicy) : URLPOLICY.ALLOW;
//                bool hasContext = (cbContext >= unchecked((uint)Marshal.SizeOf(typeof(Guid))));
//                Guid context = (hasContext) ? (Guid)Marshal.PtrToStructure(pContext, typeof(Guid)) : Guid.Empty;

//                ProcessUrlActionEvent.SetParameters(pwszUrl, action, urlPolicy, context, flags, hasContext);
//                ProcessUrlAction(this, ProcessUrlActionEvent);

//                if (ProcessUrlActionEvent.handled && hasUrlPolicy)
//                {
//                    Marshal.WriteInt32(pPolicy, (int)ProcessUrlActionEvent.urlPolicy);
//                    return (ProcessUrlActionEvent.Cancel) ? Hresults.S_FALSE : Hresults.S_OK;
//                }
//            }
//            finally
//            {
//                ProcessUrlActionEvent.ResetParameters();
//            }

//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        int IInternetSecurityManager.QueryCustomPolicy(string pwszUrl, ref Guid guidKey, out IntPtr ppPolicy, out uint pcbPolicy, IntPtr pContext, uint cbContext, uint dwReserved)
//        {
//            ppPolicy = IntPtr.Zero;
//            pcbPolicy = 0;
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        int IInternetSecurityManager.SetZoneMapping(uint dwZone, string lpszPattern, uint dwFlags)
//        {
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        int IInternetSecurityManager.GetZoneMappings(uint dwZone, out IEnumString ppenumString, uint dwFlags)
//        {
//            ppenumString = null;
//            return (int)WinInetErrors.INET_E_DEFAULT_ACTION;
//        }

//        #endregion

//        #region IProtectFocus Members

//        void IProtectFocus.AllowFocusChange(ref bool pfAllow)
//        {
//            if (AllowFocusChange != null)
//            {
//                AllowFocusChangeEvent.Cancel = false;
//                AllowFocusChange(this, AllowFocusChangeEvent);
//                if (AllowFocusChangeEvent.Cancel)
//                    pfAllow = false;
//            }
//        }

//        #endregion

//        #region IHTMLOMWindowServices Members

//        void IHTMLOMWindowServices.moveTo(int x, int y)
//        {
//            if (HTMLOMWindowServices_moveTo != null)
//            {
//                HTMLOMWindowServicesEvent.SetParameters(x, y);
//                HTMLOMWindowServices_moveTo(this, HTMLOMWindowServicesEvent);
//            }
//        }

//        void IHTMLOMWindowServices.moveBy(int x, int y)
//        {
//            if (HTMLOMWindowServices_moveBy != null)
//            {
//                HTMLOMWindowServicesEvent.SetParameters(x, y);
//                HTMLOMWindowServices_moveBy(this, HTMLOMWindowServicesEvent);
//            }
//        }

//        void IHTMLOMWindowServices.resizeTo(int x, int y)
//        {
//            if (HTMLOMWindowServices_resizeTo != null)
//            {
//                HTMLOMWindowServicesEvent.SetParameters(x, y);
//                HTMLOMWindowServices_resizeTo(this, HTMLOMWindowServicesEvent);
//            }
//        }

//        void IHTMLOMWindowServices.resizeBy(int x, int y)
//        {
//            if (HTMLOMWindowServices_resizeBy != null)
//            {
//                HTMLOMWindowServicesEvent.SetParameters(x, y);
//                HTMLOMWindowServices_resizeBy(this, HTMLOMWindowServicesEvent);
//            }
//        }

//        #endregion

//        #endregion //Interfaces Implementation

//        #region HTML Document and Window Events

//        //For now, only HtmlDocumentEvents and HtmlWindowEvents2 are supported
//        public void ActivateHTMLEvents(HTMLEventType EventType, int[] HTMLEventDispIds)
//        {
//            if (EventType == HTMLEventType.HTMLDocumentEvent)
//            {
//                m_TopLevelHtmlDocumentevents.InitHTMLEvents(this, HTMLEventDispIds, Iid_Clsids.DIID_HTMLDocumentEvents2);
//                m_WantHtmlDocumentEvents = true;
//            }
//            else if (EventType == HTMLEventType.HTMLWindowEvent)
//            {
//                m_TopLevelHtmlWindowEvents.InitHTMLEvents(this, HTMLEventDispIds, Iid_Clsids.DIID_HTMLWindowEvents2);
//                m_WantHtmlWindowEvents = true;
//            }
//            else
//                return;
//            m_WantHTMLEvents = true;
//        }

//        private void ActivateSecondaryHtmlDocumentEvents(ref cHTMLDocumentEvents doceve)
//        {
//            if (m_HtmlDocumentEventsList.Count == 0) //first one
//            {
//                doceve = new cHTMLDocumentEvents();
//            }
//            else
//            {
//                //Search for an idle one
//                foreach (cHTMLDocumentEvents eve in m_HtmlDocumentEventsList)
//                {
//                    if (!eve.m_IsCOnnected)
//                    {
//                        doceve = eve;
//                        break;
//                    }
//                }
//                //Did we find any
//                if (doceve == null)
//                    doceve = new cHTMLDocumentEvents();
//            }

//            if (doceve != null)
//            {
//                doceve.InitHTMLEvents(this, m_TopLevelHtmlDocumentevents.m_dispIds, m_TopLevelHtmlDocumentevents.m_guid);
//                m_HtmlDocumentEventsList.Add(doceve);
//            }
//        }

//        private void ActivateSecondaryHtmlWindowEvents(ref cHTMLWindowEvents wineve)
//        {
//            if (m_HtmlWindowEventsList.Count == 0)
//            {
//                wineve = new cHTMLWindowEvents();
//            }
//            else
//            {
//                foreach (cHTMLWindowEvents eve in m_HtmlWindowEventsList)
//                {
//                    if (!eve.m_IsCOnnected)
//                    {
//                        wineve = eve;
//                        break;
//                    }
//                }
//                if (wineve == null)
//                    wineve = new cHTMLWindowEvents();
//            }

//            if (wineve != null)
//            {
//                wineve.InitHTMLEvents(this, m_TopLevelHtmlWindowEvents.m_dispIds, m_TopLevelHtmlWindowEvents.m_guid);
//                m_HtmlWindowEventsList.Add(wineve);
//            }
//        }

//        private void DisconnectHtmlDocumentEvents()
//        {
//            if (m_HtmlDocumentEventsList.Count > 0)
//            {
//                foreach (cHTMLDocumentEvents doceve in m_HtmlDocumentEventsList)
//                {
//                    doceve.DisconnectHtmlEvents();
//                }
//            }
//        }

//        private void DisconnectHtmlWindowEvnets()
//        {
//            if (m_HtmlWindowEventsList.Count > 0)
//            {
//                foreach (cHTMLWindowEvents wineven in m_HtmlWindowEventsList)
//                {
//                    wineven.DisconnectHtmlEvents();
//                }
//            }
//        }

//        public void DeactivateHTMLEvents(HTMLEventType EventType)
//        {
//            m_WantHTMLEvents = false;
//            if (EventType == HTMLEventType.HTMLDocumentEvent)
//            {
//                m_WantHtmlDocumentEvents = false;
//                m_TopLevelHtmlDocumentevents.DisconnectHtmlEvents();
//                DisconnectHtmlDocumentEvents();
//            }
//            else
//            {
//                m_WantHtmlWindowEvents = false;
//                m_TopLevelHtmlWindowEvents.DisconnectHtmlEvents();
//                DisconnectHtmlWindowEvnets();
//            }
//        }

//        bool IHTMLEventCallBack.HandleHTMLEvent(HTMLEventType EventType, HTMLEventDispIds EventDispId, IHTMLEventObj pEvtObj)
//        {
//            bool bret = true; //always allow default processing
//            if (HTMLEvent != null)
//            {
//                HtmlEventArg.ResetParameters(EventType, EventDispId, pEvtObj);
//                HTMLEvent(this, HtmlEventArg);
//                //Not all events are cancellable
//                if (HtmlEventArg.Cancel)
//                    bret = false;
//                HtmlEventArg.ResetParameters(HTMLEventType.HTMLEventNone, 0, null);
//            }
//            return bret;
//        }

//        #endregion //HTML Document and Window Events

//        #region Subclassing IEServer

//        /// <summary>
//        /// Class to enable this control to catch back and forward mouse buttons
//        /// and call webbrowser GoBack and GoForward methods.
//        /// Contributed by logan1337 - Aug 13 2007
//        /// http://www.codeproject.com/cs/miscctrl/csEXWB.asp?df=100&forumid=422031&select=2180453#xx2180453xx
//        /// </summary>
//        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
//        internal class IEServerWindow : NativeWindow
//        {

//            private cEXWB browser;

//            public IEServerWindow(cEXWB wb)
//            {
//                this.browser = wb;

//                if (!wb.IEServerHwnd.Equals(IntPtr.Zero))
//                {
//                    AssignHandle(wb.IEServerHwnd);
//                }
//            }

//            public void Release()
//            {
//                ReleaseHandle();
//            }

//            [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
//            protected override void WndProc(ref Message m)
//            {
//                switch (m.Msg)
//                {
//                    case WindowsMessages.WM_XBUTTONDOWN:
//                        if (m.WParam.ToInt32() >> 16 == 1) // back button
//                        {
//                            if (browser.CanGoBack)
//                                browser.GoBack();
//                        }
//                        else if (m.WParam.ToInt32() >> 16 == 2) // forward button
//                        {
//                            if (browser.CanGoForward)
//                                browser.GoForward();
//                        }
//                        break;
//                    default:
//                        break;
//                }
//                base.WndProc(ref m);
//            }
//        }

//        #endregion

//        #region Downloader + Asynchronous pluggable protocols (APP), via CSEXWBDLMAN COM assembly

//        private string m_DownloadDir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + System.IO.Path.DirectorySeparatorChar.ToString();
//        private bool m_UseInternalDownloadManager = true;
//        private CSEXWBDLMANLib.csDLManClass m_csexwbCOMLib = null;

//        public event csExWB.FileDownloadExEventHandler FileDownloadExStart = null;
//        public event csExWB.FileDownloadExEndEventHandler FileDownloadExEnd = null;
//        public event csExWB.FileDownloadExProgressEventHandler FileDownloadExProgress = null;
//        public event csExWB.FileDownloadExAuthenticateEventHandler FileDownloadExAuthenticate = null;
//        public event csExWB.FileDownloadExErrorEventHandler FileDownloadExError = null;
//        public event csExWB.ProtocolHandlerOnBeginTransactionEventHandler ProtocolHandlerOnBeginTransaction = null;
//        public event csExWB.ProtocolHandlerOnResponseEventHandler ProtocolHandlerOnResponse = null;

//        private FileDownloadExEventArgs FileDownloadExEventArg = new FileDownloadExEventArgs();
//        private FileDownloadExEndEventArgs FileDownloadExEndEventArg = new FileDownloadExEndEventArgs();
//        private FileDownloadExProgressEventArgs FileDownloadExProgressEventArg = new FileDownloadExProgressEventArgs();
//        private FileDownloadExAuthenticateEventArgs FileDownloadExAuthenticateEventArg = new FileDownloadExAuthenticateEventArgs();
//        private FileDownloadExErrorEventArgs FileDownloadExErrorEventArg = new FileDownloadExErrorEventArgs();
//        private ProtocolHandlerOnBeginTransactionEventArgs ProtocolHandlerOnBeginTransactionEventArg = new ProtocolHandlerOnBeginTransactionEventArgs();
//        private ProtocolHandlerOnResponseEventArgs ProtocolHandlerOnResponseEventArg = new ProtocolHandlerOnResponseEventArgs();

//        [Category("ExWB"), Description("Set to true, default, to allow the control to take over file downloads. FileDownloadExxxx events are fired instead of FileDownload.")]
//        public bool UseInternalDownloadManager
//        {
//            get
//            {
//                return m_UseInternalDownloadManager;
//            }

//            set
//            {
//                m_UseInternalDownloadManager = value;
//            }
//        }

//        [Category("ExWB"), Description("Default file download directory. Set to MyDocuments by default. Used only if UseInternalDownloadManager property is set to true.")]
//        public string FileDownloadDirectory
//        {
//            get
//            {
//                return m_DownloadDir;
//            }

//            set
//            {
//                if (!string.IsNullOrEmpty(value))
//                {
//                    if (value.EndsWith(System.IO.Path.DirectorySeparatorChar.ToString()))
//                        m_DownloadDir = value;
//                    else
//                        m_DownloadDir = value + System.IO.Path.DirectorySeparatorChar;
//                }
//            }
//        }

//        /// <summary>
//        /// Checks to determine if m_DownloadManager object has been set up.
//        /// </summary>
//        private void InitCOMLibrary()
//        {
//            //if (m_DownloadManager == null)
//            //{
//            m_csexwbCOMLib = new CSEXWBDLMANLib.csDLManClass();
//            m_csexwbCOMLib.ProtocolHandlerOnBeginTransaction += new CSEXWBDLMANLib._IcsDLManEvents_ProtocolHandlerOnBeginTransactionEventHandler(dlman_ProtocolHandlerOnBeginTransaction);
//            m_csexwbCOMLib.ProtocolHandlerOnResponse += new CSEXWBDLMANLib._IcsDLManEvents_ProtocolHandlerOnResponseEventHandler(dlman_ProtocolHandlerOnResponse);
//            m_csexwbCOMLib.FileDownloadEx += new CSEXWBDLMANLib._IcsDLManEvents_FileDownloadExEventHandler(dl_FileDownloadEx);
//            m_csexwbCOMLib.OnFileDLEndDownload += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLEndDownloadEventHandler(dl_OnFileDLEndDownload);
//            m_csexwbCOMLib.OnFileDLDownloadError += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLDownloadErrorEventHandler(dl_OnFileDLDownloadError);
//            m_csexwbCOMLib.OnFileDLAuthenticate += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLAuthenticateEventHandler(m_DownloadManager_OnFileDLAuthenticate);
//            m_csexwbCOMLib.OnFileDLProgress += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLProgressEventHandler(m_DownloadManager_OnFileDLProgress);
//            //m_DownloadManager.OnFileDLBeginningTransaction += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLBeginningTransactionEventHandler(m_DownloadManager_OnFileDLBeginningTransaction);
//            //m_DownloadManager.OnFileDLResponse += new CSEXWBDLMANLib._IcsDLManEvents_OnFileDLResponseEventHandler(m_DownloadManager_OnFileDLResponse);
//            //}
//        }

//        private void AddThisIEServerHwndToComLib()
//        {
//            if (m_hWBServerHandle != IntPtr.Zero)
//                m_csexwbCOMLib.HWNDInternetExplorerServer = m_hWBServerHandle.ToInt32();
//            else if (WBIEServerHandle() != IntPtr.Zero)
//                m_csexwbCOMLib.HWNDInternetExplorerServer = m_hWBServerHandle.ToInt32();
//        }

//        /// <summary>
//        /// Attempts to download a file asynch.
//        /// FileDownloadExxxx events are used for notifications.
//        /// </summary>
//        /// <param name="Url"></param>
//        /// <returns>A unique id assigned to this file download.
//        /// Can be used to cancel a download.</returns>
//        public int DownloadFile(string Url)
//        {
//            AddThisIEServerHwndToComLib();
//            int i = 0;
//            m_csexwbCOMLib.DownloadUrlAsync(Url, ref i);
//            return i;
//        }

//        /// <summary>
//        /// Stops a file download
//        /// </summary>
//        /// <param name="dlUID">Unique id for this file download</param>
//        public void StopFileDownload(int dlUID)
//        {
//            if (m_csexwbCOMLib == null)
//                return;
//            m_csexwbCOMLib.CancelFileDownload(dlUID);
//        }

//        /// <summary>
//        /// Monitor and/or cancel every HTTP protocol request and responde
//        /// including images, sounds, scripts, ... 
//        /// Notifications are send via ProtocolHandlerOnResponse and
//        /// ProtocolHandlerOnBeginTransaction events
//        /// </summary>
//        public void StartHTTPAPP()
//        {
//            AddThisIEServerHwndToComLib();
//            if (!m_csexwbCOMLib.HTTPprotocol)
//            {
//                m_csexwbCOMLib.HTTPprotocol = true;
//            }
//        }

//        public void StopHTTPAPP()
//        {
//            if (m_csexwbCOMLib.HTTPprotocol)
//            {
//                m_csexwbCOMLib.HTTPprotocol = false;
//            }
//        }

//        public void StopHTTPSAPP()
//        {
//            if (m_csexwbCOMLib.HTTPSprotocol)
//            {
//                m_csexwbCOMLib.HTTPSprotocol = false;
//            }
//        }

//        /// <summary>
//        /// Monitor and/or cancel every HTTPS protocol request and responde
//        /// including images, sounds, scripts, ... 
//        /// Notifications are send via ProtocolHandlerOnResponse and
//        /// ProtocolHandlerOnBeginTransaction events
//        /// </summary>
//        public void StartHTTPSAPP()
//        {
//            AddThisIEServerHwndToComLib();
//            if (!m_csexwbCOMLib.HTTPSprotocol)
//            {
//                m_csexwbCOMLib.HTTPSprotocol = true;
//            }
//        }

//        //
//        //EVENTS
//        //

//        void dlman_ProtocolHandlerOnResponse(int IEServerHwnd, string sURL, string sResponseHeaders, string sRedirectedUrl, string sRedirectHeaders, ref bool Cancel)
//        {
//            if (ProtocolHandlerOnResponse != null)
//            {
//                ProtocolHandlerOnResponseEventArg.SetParameters(sURL, sResponseHeaders, sRedirectedUrl, sRedirectHeaders);
//                ProtocolHandlerOnResponse(this, ProtocolHandlerOnResponseEventArg);
//                if (ProtocolHandlerOnResponseEventArg.Cancel)
//                    Cancel = true;
//                ProtocolHandlerOnResponseEventArg.Reset();
//            }
//        }

//        void dlman_ProtocolHandlerOnBeginTransaction(int IEServerHwnd, string sURL, string sRequestHeaders, ref string sAdditionalHeaders, ref bool Cancel)
//        {
//            if (ProtocolHandlerOnBeginTransaction != null)
//            {
//                ProtocolHandlerOnBeginTransactionEventArg.SetParameters(sURL, sRequestHeaders);
//                ProtocolHandlerOnBeginTransaction(this, ProtocolHandlerOnBeginTransactionEventArg);
//                if (!ProtocolHandlerOnBeginTransactionEventArg.Cancel)
//                {
//                    //Additional headers can be added to what is already
//                    //being send by Webbrowser control
//                    if (!string.IsNullOrEmpty(ProtocolHandlerOnBeginTransactionEventArg.m_AdditionalHeadersToAdd))
//                        sAdditionalHeaders = ProtocolHandlerOnBeginTransactionEventArg.m_AdditionalHeadersToAdd;
//                }
//                else
//                    Cancel = true;
//                ProtocolHandlerOnBeginTransactionEventArg.Reset();
//            }
//        }

//        void dl_OnFileDLDownloadError(int dlUID, string sURL, string sErrorMsg)
//        {
//            if (FileDownloadExError != null)
//            {
//                FileDownloadExErrorEventArg.SetParameters(dlUID, sURL, sErrorMsg);
//                FileDownloadExError(this, FileDownloadExErrorEventArg);
//                FileDownloadExErrorEventArg.Reset();
//            }
//        }

//        void m_DownloadManager_OnFileDLProgress(int dlUID, string sURL, int lProgress, int lProgressMax, ref bool CancelDl)
//        {
//            if (this.FileDownloadExProgress != null)
//            {
//                FileDownloadExProgressEventArg.SetParameters(dlUID, sURL, lProgress, lProgressMax);
//                FileDownloadExProgress(this, FileDownloadExProgressEventArg);
//                if (FileDownloadExProgressEventArg.Cancel)
//                    CancelDl = FileDownloadExProgressEventArg.Cancel;
//                FileDownloadExProgressEventArg.Reset();
//            }
//        }

//        //Default value of Cancel = false
//        void m_DownloadManager_OnFileDLAuthenticate(int dlUID, ref string sUsername, ref string sPassword, ref bool Cancel)
//        {
//            if (FileDownloadExAuthenticate != null)
//            {
//                FileDownloadExAuthenticateEventArg.SetParameters(dlUID);
//                FileDownloadExAuthenticate(this, FileDownloadExAuthenticateEventArg);
//                if (!FileDownloadExAuthenticateEventArg.Cancel)
//                {
//                    sUsername = FileDownloadExAuthenticateEventArg.username;
//                    sPassword = FileDownloadExAuthenticateEventArg.password;
//                }
//                FileDownloadExAuthenticateEventArg.Reset();
//            }
//        }

//        void dl_OnFileDLEndDownload(int dlUID, string sURL, string sSavedFilePath)
//        {
//            if (FileDownloadExEnd != null)
//            {
//                FileDownloadExEndEventArg.SetParameters(dlUID, sURL, sSavedFilePath);
//                FileDownloadExEnd(this, FileDownloadExEndEventArg);
//                FileDownloadExEndEventArg.Reset();
//            }
//            else
//            {
//                //Just let user know for now
//                WinApis.MessageBox(this.Handle, "Download URL:\r\n" + sURL + "Saved To:\r\n" + sSavedFilePath, "File Download Completed", 0);
//            }
//        }

//        void dl_FileDownloadEx(int dlUID, string sURL, string sFilename, string sExt, string sFileSize, string sExtraHeaders, string sRedirURL, ref bool SendProgressEvents, ref bool bStopDownload, ref string sPathToSave)
//        {
//            if (FileDownloadExStart != null)
//            {
//                FileDownloadExEventArg.SetParameters(dlUID, sURL, sFilename, sExt, sFileSize, sExtraHeaders, sRedirURL);
//                FileDownloadExStart(this, FileDownloadExEventArg);
//                if (!FileDownloadExEventArg.Cancel)
//                {
//                    //Otherwise file will be saved in the same dir as exe
//                    //with the sFilename (file.zip)
//                    if (!string.IsNullOrEmpty(FileDownloadExEventArg.m_PathToSave))
//                        sPathToSave = FileDownloadExEventArg.m_PathToSave;
//                    SendProgressEvents = FileDownloadExEventArg.m_SendProgressEvents;
//                }
//                else
//                    bStopDownload = true;
//                FileDownloadExEventArg.Reset();
//            }
//            else
//            {
//                SendProgressEvents = false;
//                //Save it in the downloaddir
//                if (!string.IsNullOrEmpty(m_DownloadDir)) //Users MyDocument
//                    sPathToSave = m_DownloadDir + sFilename;
//            }
//        }

//        //void m_DownloadManager_OnFileDLResponse(int dlUID, string sURL, int lResponseCode, string sResponseHeaders, ref bool CancelDl)
//        //{
//        //    //Check against WinInetErrors enum
//        //    if( (lResponseCode == 301) || (lResponseCode > 399) ) //abort and notify the user 
//        //}

//        ////Only fired if file download is initiated using DownloadFile method
//        ////gives the client a chnace to add extra headers. Example: resume header
//        ////Syntax: Range: bytes=n-m
//        ////bResuming = true;
//        ////sAdditionalRequestHeaders = "Range: bytes=" + iLocalFileSize.ToString() + "-\r\n"
//        //void m_DownloadManager_OnFileDLBeginningTransaction(int dlUID, string sURL, string sRequestHeaders, ref string sAdditionalRequestHeaders, ref bool bResuming, ref bool bCancel)
//        //{
//        //    
//        //}

//        #endregion

//        #region Automation of webbrowser control

//        //All elements are searched by id and name for a match
//        //If frameset, it will search all frames for given element name or id.
//        //Please refer to frmAutomation for an example of usage

//        private enum AutomationTasks
//        {
//            ClickButton = 0,
//            ClickLink,
//            EnterData,
//            EnterDataTextArea,
//            SelectListItem,
//            SelectRadioButton,
//            SubmitForm
//        }

//        private bool GetElementByName(AutomationTasks task, string elemname, string data)
//        {
//            if ((this.m_WBWebBrowser2 == null) ||
//                string.IsNullOrEmpty(elemname))
//                return false;
//            bool result = false;

//            IHTMLDocument2 doc2 = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (doc2 == null)
//                return false;
//            IHTMLElementCollection col = null;

//            if (this.IsWBFrameset(doc2))
//            {
//                List<IWebBrowser2> frames = this.GetFrames(this.m_WBWebBrowser2);
//                if (frames == null)
//                    return false;
//                foreach (IWebBrowser2 wb in frames)
//                {
//                    if (task == AutomationTasks.ClickLink)
//                    {
//                        IHTMLDocument2 framedoc = wb.Document as IHTMLDocument2;
//                        if (framedoc == null)
//                            continue;
//                        col = framedoc.anchors as IHTMLElementCollection;
//                    }
//                    else if (task == AutomationTasks.SelectListItem)
//                    {
//                        IHTMLDocument3 doc3 = wb.Document as IHTMLDocument3;
//                        if (doc3 == null)
//                            continue;
//                        col = doc3.getElementsByTagName("select") as IHTMLElementCollection;
//                    }
//                    else if (task == AutomationTasks.EnterDataTextArea)
//                    {
//                        IHTMLDocument3 doc3 = wb.Document as IHTMLDocument3;
//                        if (doc3 == null)
//                            continue;
//                        col = doc3.getElementsByTagName("textarea") as IHTMLElementCollection;
//                    }
//                    else if (task == AutomationTasks.SubmitForm)
//                    {
//                        IHTMLDocument2 framedoc = wb.Document as IHTMLDocument2;
//                        if (framedoc == null)
//                            continue;
//                        col = framedoc.forms as IHTMLElementCollection;
//                    }
//                    else
//                    {
//                        IHTMLDocument3 doc3 = wb.Document as IHTMLDocument3;
//                        if (doc3 == null)
//                            continue;
//                        col = doc3.getElementsByTagName("input") as IHTMLElementCollection;
//                    }

//                    if (col == null)
//                        continue;
//                    result = this.PerformAutomationTask(col, task, elemname, data);
//                    if (result)
//                        return result;
//                }
//            }
//            else
//            {
//                if (task == AutomationTasks.ClickLink)
//                {
//                    col = doc2.anchors as IHTMLElementCollection;
//                    //IHTMLElement elem = col.item(elemname, 0) as IHTMLElement;
//                    //if (elem != null)
//                    //    elem.click();
//                    //return true;
//                }
//                else if (task == AutomationTasks.SelectListItem)
//                {
//                    //IHTMLDocument2 framedoc = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//                    //if (framedoc == null)
//                    //    return result;
//                    //col = framedoc.all as IHTMLElementCollection;

//                    //IHTMLElement elem = col.item(elemname, 0) as IHTMLElement;
//                    //if (elem != null)
//                    //{
//                    //    IHTMLSelectElement selelem = elem as IHTMLSelectElement;
//                    //    if (selelem != null)
//                    //        selelem.value = data;
//                    //}
//                    //return true;
//                    IHTMLDocument3 doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//                    if (doc3 == null)
//                        return result;
//                    col = doc3.getElementsByTagName("select") as IHTMLElementCollection;
//                }
//                else if (task == AutomationTasks.EnterDataTextArea)
//                {
//                    IHTMLDocument3 doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//                    if (doc3 == null)
//                        return result;
//                    col = doc3.getElementsByTagName("textarea") as IHTMLElementCollection;
//                }
//                else if (task == AutomationTasks.SubmitForm)
//                {
//                    IHTMLDocument2 framedoc = this.m_WBWebBrowser2.Document as IHTMLDocument2;
//                    if (framedoc == null)
//                        return result;
//                    col = framedoc.forms as IHTMLElementCollection;
//                }
//                else
//                {
//                    IHTMLDocument3 doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//                    if (doc3 == null)
//                        return result;
//                    col = doc3.getElementsByTagName("input") as IHTMLElementCollection;
//                }
//                if (col == null)
//                    return result;
//                result = this.PerformAutomationTask(col, task, elemname, data);
//            }
//            return result;
//        }

//        private bool PerformAutomationTask(IHTMLElementCollection col, AutomationTasks task, string elemname, string data)
//        {
//            bool bret = false;

//            if (col == null) return bret;

//            foreach (IHTMLElement elem in col)
//            {
//                if (elem != null)
//                {
//                    switch (task)
//                    {
//                        case AutomationTasks.ClickButton:
//                            {
//                                IHTMLInputElement btn = elem as IHTMLInputElement;
//                                if ((btn != null) &&
//                                    ((elem.id == elemname) || (btn.name == elemname))
//                                    )
//                                {
//                                    elem.click();
//                                    return true;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.ClickLink:
//                            {
//                                IHTMLAnchorElement anchor = elem as IHTMLAnchorElement;
//                                if ((anchor != null) &&
//                                    ((elem.id == elemname) || (anchor.name == elemname))
//                                    )
//                                {
//                                    elem.click();
//                                    return true;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.EnterData:
//                            {
//                                IHTMLInputElement inputelem = elem as IHTMLInputElement;
//                                if ((inputelem != null) &&
//                                    ((elem.id == elemname) || (inputelem.name == elemname))
//                                    )
//                                {
//                                    inputelem.value = data;
//                                    return true;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.EnterDataTextArea:
//                            {
//                                IHTMLTextAreaElement txtarea = elem as IHTMLTextAreaElement;
//                                if ((txtarea != null) &&
//                                    ((elem.id == elemname) || (txtarea.name == elemname))
//                                    )
//                                {
//                                    txtarea.value = data;
//                                    return true;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.SelectListItem:
//                            {
//                                IHTMLSelectElement selelem = elem as IHTMLSelectElement;
//                                if ((selelem != null) &&
//                                    ((elem.id == elemname) || (selelem.name == elemname))
//                                    )
//                                {
//                                    //data can be value or text of the htmloptionelement
//                                    // Obtain the number of option objects in the select object.
//                                    int icount = selelem.length;
//                                    IHTMLOptionElement optelem = null;
//                                    for (int i = 0; i < icount; i++)
//                                    {
//                                        optelem = selelem.item(i, i) as IHTMLOptionElement;
//                                        if (optelem != null)
//                                        {
//                                            if ((optelem.text == data) ||
//                                                (optelem.value == data))
//                                            {
//                                                optelem.selected = true;
//                                                return true;
//                                            }
//                                        }
//                                    }
//                                    return false;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.SelectRadioButton:
//                            {
//                                IHTMLInputElement inputelem = elem as IHTMLInputElement;
//                                if ((inputelem != null) &&
//                                    ((elem.id == elemname) || (inputelem.name == elemname))
//                                    )
//                                {
//                                    inputelem.checkeda = true;
//                                    return true;
//                                }
//                            }
//                            break;
//                        case AutomationTasks.SubmitForm:
//                            {
//                                IHTMLFormElement form = elem as IHTMLFormElement;
//                                if ((form != null) &&
//                                   ((elem.id == elemname) || (form.name == elemname))
//                                    )
//                                {
//                                    form.submit();
//                                    return true;
//                                }
//                            }
//                            break;
//                        default:
//                            break;
//                    }
//                }
//            } //End foreach

//            return bret;
//        }

//        /// <summary>
//        /// Performs a click on a Button element with given name
//        /// </summary>
//        /// <param name="elemname">Name of Button element</param>
//        /// <returns></returns>
//        public bool AutomationTask_PerformClickButton(string btnnameorid)
//        {
//            return this.GetElementByName(AutomationTasks.ClickButton, btnnameorid, string.Empty);
//        }

//        public bool AutomationTask_PerformClickLink(string linknameorid)
//        {
//            return this.GetElementByName(AutomationTasks.ClickLink, linknameorid, string.Empty);
//        }

//        public bool AutomationTask_PerformEnterData(string inputnameorid, string strValue)
//        {
//            return this.GetElementByName(AutomationTasks.EnterData, inputnameorid, strValue);
//        }

//        public bool AutomationTask_PerformEnterDataTextArea(string inputnameorid, string strValue)
//        {
//            return this.GetElementByName(AutomationTasks.EnterDataTextArea, inputnameorid, strValue);
//        }

//        /// <summary>
//        /// Attempts to select an item from a selection list
//        /// based on the item value or text
//        /// </summary>
//        /// <param name="selectnameorid"></param>
//        /// <param name="listitemvalueortext"></param>
//        /// <returns></returns>
//        public bool AutomationTask_PerformSelectList(string selectnameorid, string listitemvalueortext)
//        {
//            return this.GetElementByName(AutomationTasks.SelectListItem, selectnameorid, listitemvalueortext);
//        }

//        public bool AutomationTask_PerformSelectRadio(string radionameorid)
//        {
//            return this.GetElementByName(AutomationTasks.SelectRadioButton, radionameorid, string.Empty);
//        }

//        public bool AutomationTask_PerformSubmitForm(string formnameorid)
//        {
//            return this.GetElementByName(AutomationTasks.SubmitForm, formnameorid, string.Empty);
//        }

//        /// <summary>
//        /// Attempts to scroll into view a link given it's name or id
//        /// </summary>
//        /// <param name="nameorid"></param>
//        public bool AutomationTask_NamedLinkScrollIntoView(string nameorid)
//        {
//            IHTMLDocument2 pdoc2 = m_WBWebBrowser2.Document as IHTMLDocument2;
//            if (pdoc2 != null)
//            {
//                IHTMLElementCollection hrefs = pdoc2.anchors as IHTMLElementCollection;

//                if (hrefs != null)
//                {
//                    ////If there are two elements by the same name exists
//                    ////we receive the item based on the index passed (0)
//                    //IHTMLElement elem = hrefs.item(namedLink, 0) as IHTMLElement;
//                    //if (elem != null)
//                    //    elem.scrollIntoView(true);
//                    foreach (IHTMLElement elem in hrefs)
//                    {
//                        if (elem != null)
//                        {
//                            IHTMLAnchorElement anchor = elem as IHTMLAnchorElement;
//                            if ((anchor != null) &&
//                                ((elem.id == nameorid) || (anchor.name == nameorid)))
//                            {
//                                elem.scrollIntoView(true);
//                                return true;
//                            }
//                        }
//                    }
//                }
//            }
//            return false;
//        }

//        /// <summary>
//        /// Simulates a keystroke. The targetelement must have focus
//        /// </summary>
//        /// <param name="keycode">One of Keys enum</param>
//        public void AutomationTask_SimulateKeyStroke(Keys keycode)
//        {
//            WinApis.keybd_event((byte)keycode, 0, 0, UIntPtr.Zero); //keydown
//            WinApis.keybd_event((byte)keycode, 0, WinApis.KEYEVENTF_KEYUP, UIntPtr.Zero); //Keydown
//        }

//        /// <summary>
//        /// Attempts to select all the items within a given select list
//        /// </summary>
//        /// <param name="selects">A List of MultiSelectHTMLList classes containning a list of
//        /// items to select</param>
//        public void AutomationTask_PerformMultiSelectListItems(List<MultiSelectHTMLList> selects)
//        {
//            if ((this.m_WBWebBrowser2 == null) ||
//                (selects == null) || (selects.Count == 0))
//                return;
//            //throw new Exception("

//            //get the select collection from IHTMLDocument3
//            IHTMLDocument3 doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//            if (doc3 == null)
//                return;
//            IHTMLElementCollection col = doc3.getElementsByTagName("select") as IHTMLElementCollection;

//            if (col == null)
//                return;

//            int icount = 0;
//            int i = 0;
//            IHTMLOptionElement optelem = null;
//            IHTMLSelectElement selelem = null;

//            //Loop through
//            foreach (MultiSelectHTMLList list in selects)
//            {
//                if ((list != null) && (!string.IsNullOrEmpty(list.m_SelectNameOrId)) &&
//                    (list.m_ListItemsNamesOrIds != null) && (list.m_ListItemsNamesOrIds.Count > 0))
//                {
//                    //find the list in the collection
//                    foreach (IHTMLElement elem in col)
//                    {
//                        if (elem != null)
//                        {
//                            selelem = elem as IHTMLSelectElement;
//                            if ((selelem != null) &&
//                                ((elem.id == list.m_SelectNameOrId) || //check id
//                                (selelem.name == list.m_SelectNameOrId)) //check name as well
//                                )
//                            {
//                                //data can be value or text of the htmloptionelement
//                                // Obtain the number of option objects in the select object.
//                                icount = selelem.length;
//                                //loop through all items
//                                for (i = 0; i < icount; i++)
//                                {
//                                    optelem = selelem.item(i, i) as IHTMLOptionElement;
//                                    if (optelem != null)
//                                    {
//                                        //see if this the one
//                                        foreach (string data in list.m_ListItemsNamesOrIds)
//                                        {
//                                            if ((optelem.text == data) ||
//                                                (optelem.value == data))
//                                            {
//                                                optelem.selected = true;
//                                                //selected this item, break and
//                                                //continue with the rest of the items
//                                                break;
//                                            }
//                                        }
//                                    }
//                                }
//                                //Checked this select, break and continue with the next select in the list
//                                break;
//                            }
//                        }
//                    }
//                }
//            }
//        }

//        public bool AutomationTask_PerformAuthentication(string txtUserNameOrId, string txtPasswordNameOrId, string strUserName, string strPassword, bool bForceNewValue, bool bAutoSubmit)
//        {
//            bool result = false;
//            bool doneusername = false;
//            bool donepassword = false;
//            //checks
//            if (this.m_WBWebBrowser2 == null)
//                return result;

//            //get the select collection from IHTMLDocument3
//            IHTMLDocument3 doc3 = this.m_WBWebBrowser2.Document as IHTMLDocument3;
//            if (doc3 == null)
//                return result;
//            IHTMLElementCollection col = doc3.getElementsByTagName("input") as IHTMLElementCollection;

//            if (col == null)
//                return result;

//            IHTMLInputElement inputelem = null;
//            foreach (IHTMLElement elem in col)
//            {
//                if (elem != null)
//                {
//                    inputelem = elem as IHTMLInputElement;
//                    if (inputelem != null)
//                    {
//                        if ((elem.id == txtUserNameOrId) ||
//                            (inputelem.name == txtUserNameOrId))
//                        {
//                            if ((string.IsNullOrEmpty(inputelem.value)) ||
//                                (bForceNewValue))
//                            {
//                                doneusername = true;
//                                inputelem.value = strUserName;
//                            }
//                        }
//                        else if ((elem.id == txtPasswordNameOrId) ||
//                            (inputelem.name == txtPasswordNameOrId))
//                        {
//                            //To make sure this is the one we 
//                            //can also check for hidden or password 
//                            //value indicated by type property.
//                            if ((string.IsNullOrEmpty(inputelem.value)) ||
//                                (bForceNewValue))
//                            {
//                                donepassword = true;
//                                inputelem.value = strPassword;
//                            }
//                        }
//                    }
//                    if ((doneusername) && (donepassword))
//                        break;
//                }
//            }
//            if (((doneusername) && (donepassword)) && bAutoSubmit)
//            {
//                this.AutomationTask_SimulateKeyStroke(Keys.Enter);
//                //if ((inputelem != null) && (inputelem.form != null))
//                //{
//                //    IHTMLFormElement form = inputelem.form as IHTMLFormElement;
//                //    if (form != null)
//                //        form.submit();
//                //}
//            }
//            return ((doneusername) && (donepassword)) ? true : false;
//        }

//        #endregion

//        #region TravelLog - this webbrowser session history

//        private ITravelLogStg m_TravelLogStg = null;

//        private bool GetHistorySession()
//        {
//            if (m_TravelLogStg != null)
//                return true;
//            //QI for serviceprovider
//            IfacesEnumsStructsClasses.IServiceProvider psp = m_WBUnknown as IfacesEnumsStructsClasses.IServiceProvider;
//            if (psp == null)
//                return false;

//            IntPtr oret = IntPtr.Zero;
//            //QueryService for ITravelLogStg
//            int hr = psp.QueryService(ref Iid_Clsids.SID_STravelLogCursor, ref Iid_Clsids.IID_ITravelLogStg, out oret);
//            if ((oret == IntPtr.Zero) || (hr != Hresults.S_OK))
//                return false;
//            Marshal.ReleaseComObject(psp);
//            m_TravelLogStg = Marshal.GetObjectForIUnknown(oret) as ITravelLogStg;
//            return (m_TravelLogStg != null) ? true : false;
//        }

//        public int GetTravelLogCount()
//        {
//            int iret = 0;
//            if (!GetHistorySession())
//                return iret;
//            m_TravelLogStg.GetCount((int)TLMENUF.TLEF_ABSOLUTE, out iret);
//            return iret;
//        }

//        //If there is no title, the method returns the URL of the page.
//        //The method returns zero length string for the 
//        //current page's title and url
//        public List<TravelLogStruct> GetTraveLogEntries()
//        {
//            List<TravelLogStruct> entries = new List<TravelLogStruct>();
//            if (!GetHistorySession())
//                return entries;

//            //Enum the travel log entries
//            IEnumTravelLogEntry penumtle = null;
//            m_TravelLogStg.EnumEntries((int)TLMENUF.TLEF_ABSOLUTE, out penumtle);
//            if (penumtle == null)
//                return entries;

//            int hr = 0;
//            ITravelLogEntry ptle = null;
//            int fetched = 0;
//            IntPtr pTitle = IntPtr.Zero;
//            IntPtr pUrl = IntPtr.Zero;
//            const int MAX_FETCH_COUNT = 1;

//            hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucess, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                if (ptle != null)
//                {
//                    pTitle = IntPtr.Zero;
//                    pUrl = IntPtr.Zero;
//                    ptle.GetTitle(out pTitle);
//                    TravelLogStruct tlg = new TravelLogStruct();
//                    if (pTitle != IntPtr.Zero)
//                        tlg.Title = Marshal.PtrToStringUni(pTitle);
//                    else
//                        tlg.Title = string.Empty;

//                    ptle.GetURL(out pUrl);
//                    if (pUrl != IntPtr.Zero)
//                        tlg.URL = Marshal.PtrToStringUni(pUrl);
//                    else
//                        tlg.URL = string.Empty;

//                    entries.Add(tlg);
//                    //We are responsible to free the memory
//                    Marshal.FreeCoTaskMem(pTitle);
//                    Marshal.FreeCoTaskMem(pUrl);
//                    //http://msdn2.microsoft.com/en-us/library/aa753624.aspx
//                }
//                hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//                Marshal.ThrowExceptionForHR(hr);
//            }
//            Marshal.ReleaseComObject(penumtle);
//            return entries;
//        }

//        public ITravelLogEntry AddTravelLogEntry(string url, string title)
//        {
//            ITravelLogEntry ptle = null;
//            if (!GetHistorySession())
//                return ptle;

//            m_TravelLogStg.CreateEntry(url, title, null, true, out ptle);
//            return ptle;
//        }

//        /// <summary>
//        /// Removes all travel log entries for this webbrowser instance
//        /// </summary>
//        /// <returns></returns>
//        public bool RemoveAllTravelLogEntries()
//        {
//            if (!GetHistorySession())
//                return false;

//            int hr = 0;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;
//            IntPtr pTitle = IntPtr.Zero;
//            ITravelLogEntry ptle = null;
//            IEnumTravelLogEntry penumtle = null;
//            //Find entries
//            m_TravelLogStg.EnumEntries((int)TLMENUF.TLEF_ABSOLUTE, out penumtle);
//            if (penumtle == null)
//                return false;

//            hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucess, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                if (ptle != null)
//                {
//                    pTitle = IntPtr.Zero;
//                    ptle.GetTitle(out pTitle);
//                    if (pTitle != IntPtr.Zero) //Current entry?
//                    {
//                        Marshal.FreeCoTaskMem(pTitle);
//                        m_TravelLogStg.RemoveEntry(ptle);
//                    }
//                }
//                hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//                Marshal.ThrowExceptionForHR(hr);
//            }
//            Marshal.ReleaseComObject(penumtle);
//            return true;
//        }

//        /// <summary>
//        /// Removes all entries matching given url
//        /// The current entry cannot be deleted.
//        /// </summary>
//        /// <param name="url"></param>
//        /// <param name="title"></param>
//        /// <returns></returns>
//        public bool RemoveTravelLogEntries(string url)
//        {
//            if (!GetHistorySession())
//                return false;

//            int hr = 0;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;
//            IntPtr pUrl = IntPtr.Zero;
//            string targeturl = string.Empty;
//            ITravelLogEntry ptle = null;
//            IEnumTravelLogEntry penumtle = null;
//            //Find entries
//            m_TravelLogStg.EnumEntries((int)TLMENUF.TLEF_ABSOLUTE, out penumtle);
//            if (penumtle == null)
//                return false;

//            hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucess, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                if (ptle != null)
//                {
//                    pUrl = IntPtr.Zero;
//                    ptle.GetURL(out pUrl);
//                    if (pUrl != IntPtr.Zero)
//                    {
//                        targeturl = Marshal.PtrToStringUni(pUrl);
//                        Marshal.FreeCoTaskMem(pUrl);
//                        if ((!string.IsNullOrEmpty(targeturl)) &&
//                            (targeturl == url))
//                            m_TravelLogStg.RemoveEntry(ptle);
//                    }
//                }
//                hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//                Marshal.ThrowExceptionForHR(hr);
//            }
//            Marshal.ReleaseComObject(penumtle);

//            return true;
//        }

//        /// <summary>
//        /// Removes first entry matching given url and title
//        /// </summary>
//        /// <param name="url"></param>
//        /// <param name="title"></param>
//        /// <returns></returns>
//        public bool RemoveTravelLogEntry(string url, string title)
//        {
//            if (!GetHistorySession())
//                return false;

//            int hr = 0;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;
//            IntPtr pTitle = IntPtr.Zero;
//            IntPtr pUrl = IntPtr.Zero;
//            string targeturl = string.Empty;
//            string targettitle = string.Empty;
//            ITravelLogEntry ptle = null;
//            IEnumTravelLogEntry penumtle = null;
//            //Find entries
//            m_TravelLogStg.EnumEntries((int)TLMENUF.TLEF_ABSOLUTE, out penumtle);
//            if (penumtle == null)
//                return false;

//            hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucess, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                if (ptle != null)
//                {
//                    pTitle = IntPtr.Zero;
//                    pUrl = IntPtr.Zero;
//                    ptle.GetURL(out pUrl);
//                    ptle.GetTitle(out pTitle);
//                    if ((pUrl != IntPtr.Zero) &&
//                        (pTitle != IntPtr.Zero))
//                    {
//                        targeturl = Marshal.PtrToStringUni(pUrl);
//                        targettitle = Marshal.PtrToStringUni(pTitle);
//                        Marshal.FreeCoTaskMem(pTitle);
//                        Marshal.FreeCoTaskMem(pUrl);
//                        if ((!string.IsNullOrEmpty(targettitle)) &&
//                            (targettitle == title) &&
//                            (!string.IsNullOrEmpty(targeturl)) &&
//                            (targeturl == url))
//                        {
//                            m_TravelLogStg.RemoveEntry(ptle);
//                            return true;
//                        }
//                    }
//                }
//                hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//                Marshal.ThrowExceptionForHR(hr);
//            }
//            Marshal.ReleaseComObject(penumtle);

//            return false;
//        }

//        /// <summary>
//        /// Removes one entry based on index
//        /// Can not delete current entry
//        /// </summary>
//        /// <param name="index">0 based index</param>
//        /// <returns></returns>
//        public bool RemoveTravelLogEntry(int index)
//        {
//            if (!GetHistorySession())
//                return false;

//            int hr = 0;
//            int fetched = 0;
//            const int MAX_FETCH_COUNT = 1;
//            IntPtr pTitle = IntPtr.Zero;
//            ITravelLogEntry ptle = null;
//            IEnumTravelLogEntry penumtle = null;
//            //Find entries
//            m_TravelLogStg.EnumEntries((int)TLMENUF.TLEF_ABSOLUTE, out penumtle);
//            if (penumtle == null)
//                return false;

//            hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//            Marshal.ThrowExceptionForHR(hr);
//            //while sucess, continue
//            for (int i = 0; Hresults.S_OK == hr; i++)
//            {
//                if ((ptle != null) &&
//                    (i == index))
//                {
//                    pTitle = IntPtr.Zero;
//                    ptle.GetTitle(out pTitle);
//                    if (pTitle != IntPtr.Zero) //Current entry?
//                    {
//                        Marshal.FreeCoTaskMem(pTitle);
//                        m_TravelLogStg.RemoveEntry(ptle);
//                        return true;
//                    }
//                    else
//                        return false;
//                }
//                hr = penumtle.Next(MAX_FETCH_COUNT, out ptle, out fetched);
//                Marshal.ThrowExceptionForHR(hr);
//            }
//            Marshal.ReleaseComObject(penumtle);
//            return false;
//        }

//        #endregion

//        #region IHTMLEditHost Members

//        public event HTMLEditHostSnapRectEventHandler HTMLEditHostSnapRect = null;
//        private HTMLEditHostSnapRectEventArgs HTMLEditHostSnapRectEvent = new HTMLEditHostSnapRectEventArgs();

//        int IHTMLEditHost.SnapRect(IHTMLElement pIElement, ref tagRECT prcNew, int eHandle)
//        {
//            if (HTMLEditHostSnapRect != null)
//            {
//                HTMLEditHostSnapRectEvent.SetParameters(pIElement, prcNew, eHandle);
//                HTMLEditHostSnapRect(this, HTMLEditHostSnapRectEvent);
//                //if things changed
//                prcNew = HTMLEditHostSnapRectEvent.ElemRect;
//            }
//            return Hresults.S_OK;
//        }

//        #endregion

//    } //class cEXWB

//} //csExWB