多媒体的视频显示问题~~

Question

有没有办法将已被拉伸过后的显示屏变小啊？就是当我们将它的DisplayRect变为全屏的话，它的DisplayRect.Right=800,DisplayRect.Left=0;但是这个不能赋值，我想把它变回原来的大小，有没有办法实现呢？

Answer 1

DisplayRect := rect(0,0,800,600); 

Answer 2

unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;implementationuses Unit2;{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
begin
    Form2.Top := 0;
    Form2.Left := 0;
    Form2.Width := Screen.Width;
    Form2.Height := Screen.Height;
    Form2.ShowModal;
end;end.
unit Unit2;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;type
  TForm2 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form2: TForm2;implementation{$R *.dfm}procedure TForm2.Button1Click(Sender: TObject);
begin
    Form2.Top := 10;
    Form2.Left := 10;
    Form2.Width := 100;
    Form2.Height := 100;
    Form2.Close;
end;end.

Answer 3

unit Unit2;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;type
  TForm2 = class(TForm)
    procedure FormClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form2: TForm2;implementation{$R *.dfm}procedure TForm2.FormClick(Sender: TObject);
begin
    Close;
end;end.