// Invoke the Changed event; called whenever list changes
 protected virtual void OnMouseTrackDelete(MouseTrackDeleteEventArgs e)
 {
     if (MouseTrackDeleteEvent != null)
         MouseTrackDeleteEvent(this, e);
 }
 private void RemoteDisplay1_MouseTrackDeleteEvent(object sender, MouseTrackDeleteEventArgs e)
 {
     // send erase event
     SendSerial(e.Location.X, e.Location.Y, false);
 }