title: xceed messagebox hidden when app focus is lost
body: <p>I'm using <code>Xceed.Wpf.Toolkit.MessageBox</code> and when the MessageBox gets hidden by another app while it's opened (Minimizing the app also works), it's no longer displayed, it stays behind everything. This means if the MessageBox was in the app border, I can no longer see it nor move the MainWindow. So I can only force close.</p>
  
  <p>Is there a way to force the MessageBox to always be on top of the application?</p>
  
  <p>The MessageBox is created this way : </p>
  
  <pre><code>private static MessageBoxResult Show(string message, string title, MessageBoxButton button, MessageBoxImage image)
  {
      if (Application.Current.Dispatcher.CheckAccess())
          return MessageBox.Show(Application.Current.Windows[0], message, title, button, image);
  
  
      return (MessageBoxResult) Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal, 
          new Func&lt;MessageBoxResult&gt;(() =&gt; MessageBox.Show(Application.Current.Windows[0], message, title, button, image)));
  
  }
  </code></pre>