vedio2.pas

本光盘是《Delphi 7应用教程》一书的配套光盘

unit Vedio2;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    Panel1: TPanel;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    MediaPlayer1: TMediaPlayer;
    Button7: TButton;
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
    OpenDialog1.Execute;
    MediaPlayer1.Stop;
    MediaPlayer1.FileName:=OpenDialog1.FileName;
    MediaPlayer1.Frames :=5;
    MediaPlayer1.Display:=Panel1;
    MediaPlayer1.Open;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
    MediaPlayer1.Stop;
    MediaPlayer1.Close;
end;

procedure TForm1.FormCreate(Sender: TObject);
 Var
    Curdir:string;
begin
    GetDir(0,CurDir);
    MediaPlayer1.FileName :=Curdir+'\A2.AVI';
    MediaPlayer1.Display :=Panel1;
    MediaPlayer1.Open;
    OpenDialog1.InitialDir :=CurDir;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
    MediaPlayer1.Play;
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
 If Button5.Caption = '暂停' then
           begin
             MediaPlayer1.Pause;
             Button5.Caption :='恢复';
           end
   else
        begin
           MediaPlayer1.Resume ;
           Button5.Caption :='暂停';
        end;
   end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  MediaPlayer1.Step ;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
 MediaPlayer1.Back  ;
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
  MediaPlayer1.Stop;
end;                

procedure TForm1.Button7Click(Sender: TObject);
begin
  Form1.Close ;
end;

end.