Function()treeNode.getCheckStatus

Get the node's half-checked status of checkbox or radio. It is valid when [setting.check.enable = true]

Do not initialize or modify it, it is created by the zTree.

{
	checked: true, //As same as 'treeNode.checked'
	half: true  //Rule the table below
}

setting.check.checkType = "checkbox"
treeNode.checked	treeNode.check_Child_State	treeNode.halfCheck	half
-	-	true	true

true	-1	false	false
true	0	false	true
true	1	false	true
true	2	false	false

false	-1	false	false
false	0	false	false
false	1	false	true
false	2	false	true

setting.check.checkType = "radio"
treeNode.checked	treeNode.check_Child_State	treeNode.halfCheck	half
-	-	true	true

true	-1	false	false
true	0	false	false
true	2	false	true

false	-1	false	false
false	0	false	false
false	2	false	true

var treeObj = $.fn.zTree.getZTreeObj("tree");
var halfCheck = treeObj.getNodes()[0].getCheckStatus();