title: Additional text for ctrl+c keypress
body: <p>As most MessageBoxes, the WPF MessageBox copies all of its contents (caption, text, buttons) to the clipboard if the user presses CTRL+C while the MessageBox is shown. So far everything is fine.</p>
  
  <p>Now I would like to supply additional information, but only to the clipboard, not in the MessageBox itself. Does anyone know how I would do this?</p>
  
  <pre><code>System.Windows.MessageBox.Show(this, "The Message", "MsgBox Caption", MessageBoxButton.OK, MessageBoxImage.Information);
  </code></pre>