private void ImageViewer_OnKeyUp(object sender, KeyEventArgs e) { if (e.Key == Key.Escape || e.Key == Key.Back || e.Key == Key.BrowserBack || e.Key == Key.Q || e.Key == Key.W && Keyboard.Modifiers.HasFlag(ModifierKeys.Control)) { Close(); } else if (e.Key == Key.Enter) { IsSelected = true; Close(); } }