Inheritance: System.EventArgs
 protected virtual void OnKeySent( object sender, NativeKeySentEventArgs e )
 {
     if( !PredictionTextAreaService.Service.IsDriven )
     {
         if( e.Key == NativeMethods.KeyboardKeys.Space && _rawContext != null && _rawContext.Length > 0 )
         {
             var raw = _rawContext.Substring( 0, _rawContext.Length - 1 );
             _caretIndex = raw.Length;
             SetRawText( raw );
         }
         else if( e.Key == NativeMethods.KeyboardKeys.Enter )
         {
             ClearContext();
         }
     }
 }