Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

procedure TForm1.FormCreate(Sender: TObject);
 begin
   MediaPlayer1.Notify   := True;
   MediaPlayer1.OnNotify := NotifyProc;
 end;

 procedure TForm1.NotifyProc(Sender: TObject);
 begin
   with Sender as TMediaPlayer do
    begin
     case Mode of
       mpStopped: {do something here};
     end;
     //must set to true to enable next-time notification 
    Notify := True;
   end;
 end;


 { 
  NOTE that the Notify property resets back to False when a 
  notify event is triggered, so inorder for you to recieve 
  further notify events, you have to set it back to True as in the code. 
  for the MODES available, see the helpfile for MediaPlayer.Mode; 
}