public void OnWindowClosing(object sender, CancelEventArgs e)
{
if (this == window)
{
window = null;
}
}
private void OpenThemesEdit(object sender, RoutedEventArgs e)
{
if (ThemesWindow.window != null)
{
return;
}
ThemesWindow themesWindow = new ThemesWindow();
themesWindow.Show();
}
public ThemesWindow()
{
if (window != null)
{
Close();
return;
}
InitializeComponent();
window = this;
Closing += OnWindowClosing;
}