bfq.pas

用delphi实现简单的播放器

unit bfq;

interface

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

type
  TForm1 = class(TForm)
    Panel1: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    MediaPlayer1: TMediaPlayer;
    OpenDialog1: TOpenDialog;
    Panel2: TPanel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure MediaPlayer1Notify(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin

  opendialog1.DefaultExt:='AVT';
  opendialog1.FileName:='*.*';
  //opendialog1.Filter := 'avi files|*.avi|wmv files|*.wmv|midi files|*.mid';
  if opendialog1.Execute then
  begin
    panel2.Caption:='播放文件的名称：'+opendialog1.FileName;
    mediaplayer1.FileName:=opendialog1.FileName;
    mediaplayer1.Open;
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  mediaplayer1.Next;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  mediaplayer1.Back;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  if button5.Caption='暂停' then
     button5.Caption:='恢复'
  else
    button5.Caption:='暂停';
  mediaplayer1.Pause;

end;

procedure TForm1.Button5Click(Sender: TObject);
begin
  mediaplayer1.Open;
  mediaplayer1.Play;
end;
procedure TForm1.MediaPlayer1Notify(Sender: TObject);
begin
  panel2.Caption:='播放完毕！' ;
end;

end.