procedure TForm3.MxDrawX1CustomEvent(ASender: TObject;
  const sEventName: WideString);
  var
  param : MxDrawResbuf;
begin
             if  sEventName = 'ObjectGripEdit' then
             begin
                        showmessage('tt');
                        param :=MxDrawResbuf( MxDrawX1.CustomEventParam());
                        MxDrawX1.TwinkeEnt(param.AtObjectId(0) );
             end;
end;