Delphi中启用禁止CD驱动器自动运行播放

时间：2011/9/3 15:00:52 点击：

　　核心提示：type TAutoPlayForm = class(TForm) chkNoAutoPlay: TCheckBox; procedure FormCreate(Sender: TObject) ;...

type
   TAutoPlayForm = class(TForm)
     chkNoAutoPlay: TCheckBox;
     procedure FormCreate(Sender: TObject) ;
   private
     procedure WindowProcedure(var Msg : TMessage) ;
   end;

var
   AutoPlayForm: TAutoPlayForm;

   Message_QueryCancelAutoPlay : Cardinal;

implementation

{$R *.dfm}

procedure TAutoPlayForm.WindowProcedure(var Msg: TMessage) ;
begin
   if (Message_QueryCancelAutoPlay = Msg.Msg) then
   begin
     if chkNoAutoPlay.Checked then
       Msg.Result := 1 //disable auto-play
     else
       Msg.Result := 0; //enable auto-play
   end
   else
     inherited WndProc (Msg) ;
end;

procedure TAutoPlayForm.FormCreate(Sender: TObject) ;
begin
   Self.WindowProc := WindowProcedure;

   Message_QueryCancelAutoPlay := RegisterWindowMessage('QueryCancelAutoPlay') ;
end;