[StructLayout(LayoutKind.Sequential)]        public struct WindowRect        {            public int left;            public int top;            public int right;            public int bottom;        }        [DllImport("user32.dll")]        private static extern IntPtr FindWindow(string ClassName, string WindowName);        [DllImport("user32.dll")]        private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string className, string windowName);        [DllImport("user32.dll")]        private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);        [DllImport("user32.dll")]        static extern bool GetWindowRect(HandleRef hwnd, out WindowRect rect);        const int SW_HIDE = 0;        const int SW_SHOW = 5;        [DllImport("user32.dll")]        static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);        public MainWindow()        {            InitializeComponent();            this.Loaded += MainWindow_Loaded;        }        private void MainWindow_Loaded(object sender, RoutedEventArgs e)        {            IntPtr taskBarWnd = FindWindow("Shell_TrayWnd", null);            IntPtr tray = FindWindowEx(taskBarWnd, IntPtr.Zero, "TrayNotifyWnd", null);            IntPtr trayclock = FindWindowEx(tray, IntPtr.Zero, "TrayClockWClass", null);            WindowRect rect;            GetWindowRect(new HandleRef(Application.Current.MainWindow, trayclock), out rect);            //this.Top = rect.top;            //this.Left = rect.left;            //this.Width = rect.right - Left;            //this.Height = rect.bottom - rect.top;            //this.Topmost = true;                    }