unit1.pas

实现拉升图片的功能

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Image1: TImage;
    Timer1: TTimer;
    Button1: TButton;
    Button2: TButton;
    procedure Timer1Timer(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  Image1.Width:=Image1.Width+2;
  //设置拉伸增量
  if image1.Width>200 then
    Timer1.Enabled:=False;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  Timer1.Enabled:=True;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Timer1.Enabled:=False;
end;

end.