title: Trap mouse clicks outside of modal dialog
body: <p>I have an application written in C# targeting .NET Compact Framework 3.5, running on Windows CE.  I would like to provide a custom visual cue in a modal dialog if the user tries to interact with its owner window without closing the dialog first. </p>
  
  <p>Is it possible for a modal dialog to receive notifications of mouse clicks on its owner window? The owner window is running in full screen, so it would be sufficient to trap clicks outside of the modal dialog in general.</p>