unit1.~pas

这有很多Delphi应用的例子

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, MPlayer;

type
  TForm1 = class(TForm)
    MediaPlayer1: TMediaPlayer;
    Button1: TButton;
    procedure MediaPlayer1Notify(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.MediaPlayer1Notify(Sender: TObject);
begin
  With MediaPlayer1 Do
    If NotifyValue = nvSuccessful
       Then Begin
              Position := 0;
              Play;
              Notify := True;
            End  
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  MediaPlayer1.FileName:='C:\Windows\Media\canyon.mid';
  MediaPlayer1.Open;
  MediaPlayer1.Wait:=true;
  MediaPlayer1.Play;
end;

end.