if(!_WIN7_LATER){
	get = function(){}
	return;
}

import System.Windows.Automation.3;
var Automation = System.Windows.Automation;
var AutomationElement = Automation.AutomationElement;

var cacheBoundingRect = Automation.CacheRequest(); 
cacheBoundingRect.TreeFilter = Automation.Automation.RawViewCondition;  
cacheBoundingRect.Add(AutomationElement.BoundingRectangleProperty);

var conditionWpfCaret = Automation.PropertyCondition( AutomationElement.ClassNameProperty, "WpfCaret" );

namespace winex.wpfCaret;
get = function(hwnd) {

	var hFocus;
	var focusedEle; 

    try{
    	if(hwnd) { 
    	    hFocus = ..winex.getFocus(hwnd);
    		focusedEle = AutomationElement.FromHandle(hFocus); 
    	}
		else {
			focusedEle = AutomationElement.RootElement.FocusedElement;
			hFocus = focusedEle.Current.NativeWindowHandle;
		}
    } 
    
    if (!focusedEle) {
    	return false;
    }
    
    var rc;
 
    cacheBoundingRect.Push(); 
 	
 	try{
    	var wpfCaret = focusedEle.FindFirst(4/*Automation.TreeScope.Descendants*/
    		,conditionWpfCaret);
    		
    	if (wpfCaret) {
    		with wpfCaret.Cached.BoundingRectangle{
    			rc = ::RECT(Left,Top,right,Bottom);  
    			rc.hwnd = hFocus;
    		}
    		
    	} 
    }
    
    cacheBoundingRect.Pop(); 
    
    ..com.Release(focusedEle);
	return rc,hFocus;
}

/*****intellisense()
winex.wpfCaret = 获取 WPF 窗口输入光标位置。\n用于 key.ime.stateBar , 返回值为 winex.caret.get 兼容格式。
winex.wpfCaret.get( = 获取 WPF 窗口输入光标位置。\n获取其他类型窗口光标应当事用 winex.caret.get 。
winex.wpfCaret.get(.(hwnd) = 在 @hwnd 指定句柄的 WPF 窗口获取输入光标位置.\n不指定参数则获取前台 WPF 窗口输入光标。\n\n成功返回 ::RECT 结构体，失败返回 null。\n返回结构体的值使用屏幕坐标。\n如果获取到真实输入光标大小则返回结构体的 right,bottom 为非 0 值，\n返回结构体的 hwnd 成员为输入光标所在窗口句柄。\n\n第 2 个返回值为输入焦点窗口句柄
winex.wpfCaret.get() = !rect.
end intellisense*****/

/**details(检测 WPF 窗口)

```aardio
var wndClass = win.getClass(hForeground);
var wpfWnd = string.find(wndClass,"HwndWrapper\[\N+?;;\x[\x\-]+\x\]");
```
end details**/