WPF中获取Hwnd与窗体，Uid获取控件

void MapControl_Loaded(object sender, RoutedEventArgs e)

        {

            this.OnApplyTemplate();

            CurrentMapChanged(new DependencyPropertyChangedEventArgs(MapControl.PropertyCurrentMap, "", ""));

            //

            Window parentWindow = Window.GetWindow(this);

            IntPtr handle = (new WindowInteropHelper(parentWindow)).Handle;

            Console.WriteLine("parentWindow WHnd: " + handle.ToInt32());

            HwndSource hwndSource = HwndSource.FromHwnd(handle);

            Visual visual = hwndSource.RootVisual;

            Window window = (Window)visual;

            Console.WriteLine("parentWindow WHnd: " + window.Title);

            //

            String mapUid = Guid.NewGuid().ToString();

            this.Uid = mapUid;

            //

            Console.WriteLine("this control uid: " + this.Uid);

            UIElement elem = this.FindUIElementByUid(window, mapUid);

            if(elem != null)

            {

                Console.WriteLine("this control uid: " + elem.Uid);

            }

        }

        private UIElement FindUIElementByUid(DependencyObject parent, string uid)

        {

            int count = VisualTreeHelper.GetChildrenCount(parent);

            for (int i = 0; i < count; i++)

            {

                UIElement el = VisualTreeHelper.GetChild(parent, i) as UIElement;

                if (el == null) continue;

                Console.WriteLine("el.Uid: " + el.Uid);

                if (el.Uid == uid) { return el; }

                UIElement el1 = FindUIElementByUid(el, uid);

                if (el1 != null) { return el1; }

            }

            //

            if (parent is ContentControl)

            {

                UIElement content = (parent as ContentControl).Content as UIElement;

                if (content != null)

                {

                    Console.WriteLine("content.Uid: " + content.Uid);

                    if (content.Uid == uid) return content;

                    UIElement el1 = FindUIElementByUid(content, uid);

                    if (el1 != null) { return el1; }

                }

            }

            return null;

        }

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