unit1.pas

来自「精彩编程百例26～50 其中有 控制任务栏 windows底层任务控制 屏保预览」· PAS 代码 · 共 80 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Timer1: TTimer;
    Timer2: TTimer;
    Panel1: TPanel;
    Image1: TImage;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    procedure Timer2Timer(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Timer2Timer(Sender: TObject);
begin
  if not (form1.ClientHeight = 50) then
   begin
    form1.ClientHeight := form1.ClientHeight - 10;
   end
   else timer2.Enabled := false;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  if not (form1.ClientHeight = 350) then
   begin
    form1.ClientHeight := form1.ClientHeight + 10;
   end
   else timer1.Enabled := false;
end;


procedure TForm1.FormShow(Sender: TObject);
begin
  form1.ClientWidth := 400;
  form1.ClientHeight := 40;
  timer1.enabled := true;
end;

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
  timer2.enabled := true;
  BitBtn2.visible := true;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
  timer1.enabled := true;
end;

procedure TForm1.BitBtn3Click(Sender: TObject);
begin
close
end;

end.