internal MouseOverMessageExchangeMessage(WindowlessControlBaseExt sender, List <WindowlessControlBase> relatedControls)
     : base(sender)
 {
     foreach (WindowlessControlBase relatedControl in relatedControls)
     {
         if (!this.relatedControls.Contains(relatedControl))
         {
             this.relatedControls.Add(relatedControl);
         }
     }
 }
 internal MouseOverMessageExchangeMessage(WindowlessControlBaseExt sender)
     : base(sender)
 {
     isReverting = true;
 }