private void Form_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
 {
     // Send mousepress message
     MousePressMessage msg = new MousePressMessage();
     msg.Button = e.Button;
     msg.Depressed = false;
     Owner.MessagePool.SendMessage(msg);
 }
 public void OnMousePress(MousePressMessage msg)
 {
     // Is it right button?
     if (msg.Button == MouseButtons.Right)
         rotate = msg.Depressed;
 }