private void RB_Cut_Click(object sender, RoutedEventArgs e)
{
Window win = Window.GetWindow(this);
win.Hide();
Thread.Sleep(200);
System.Drawing.Bitmap newBitmap = CopyHelper.CopyFromScreen();
System.Windows.Media.ImageSource ISource = CopyHelper.BitMapToImageSource(newBitmap);
ShowWinCopy(ISource, win);
}