private void WindowKeyDown(object sender, KeyEventArgs e)
{
if ((e.KeyboardDevice.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
switch (e.Key)
{
case Key.Z:
_drawingManager.Undo();
break;
case Key.C:
_drawingManager.LastRecordedBitmap.CopyImageToClipboard();
break;
case Key.Y:
_drawingManager.Redo();
break;
}
}
}