//获取节点属性
//UIA 探测工具： file://~/tools/Spy/inspect.aardio 
import System.Windows.Automation;

Automation = System.Windows.Automation; 
AutomationElement = Automation.AutomationElement;

var focusElement = AutomationElement.RootElement.FocusedElement;
if(focusElement){ 
	  
	//通过 Current 对象访问当前属性（支持默认属性）
	//https://learn.microsoft.com/en-us/dotnet/api/system.windows.automation.automationelement.current?view=netframework-4.0
	var hwnd = focusElement.Current.NativeWindowHandle;
	print("焦点输口句柄",hwnd);
}