public static MessageBoxResult Show(Window owner)
        {
            Window_About aboutWindow = new Window_About();

            aboutWindow.Owner = owner;
            if (false == aboutWindow.ShowDialog())
            {
                return(MessageBoxResult.Cancel);
            }

            return(aboutWindow.MessageBoxResult);
        }
 private void About_Click(object sender, RoutedEventArgs e)
 {
     Window_About.Show(this);
 }