如何用弹出窗口显示进度
文章作者 100test 发表时间 2011:03:22 18:44:31
来源 100Test.Com百考试题网
导读:如何用弹出窗口显示进度,在空白窗体上添加 Button 和 Timer, 并分别激活它们的默认事件。
准备工作: 在空白窗体上添加 Button 和 Timer, 并分别激活它们的默认事件.
unit Unit1.
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls.
type
TForm1 = class(TForm)
Button1: TButton.
Timer1: TTimer.
procedure Button1Click(Sender: TObject).
procedure Timer1Timer(Sender: TObject).
end.
var
Form1: TForm1.
implementation
{$R *.dfm}
uses Gauges.
var Gauge1: TGauge.
procedure TForm1.Button1Click(Sender: TObject).
var
frm: TForm.
begin
frm := TForm.Create(nil).
frm.BorderStyle := bsSizeToolWin.
frm.Width := 300.
frm.Height := 80.
frm.Position := poDesktopCenter.
Gauge1 := TGauge.Create(frm).
Gauge1.MinValue := 0.
Gauge1.MaxValue := 100.
Gauge1.Width := frm.ClientWidth - 40.
Gauge1.Height := 20.
Gauge1.Left := 20.
Gauge1.Top := (frm.ClientHeight - Gauge1.Height) div 2.
Gauge1.Parent := frm.
Timer1.Interval := 100.
Timer1.Enabled := True.
frm.ShowModal.
frm.Free.
Timer1.Enabled := False.
end.
procedure TForm1.Timer1Timer(Sender: TObject).
begin
if Assigned(Gauge1) then
begin
Gauge1.Progress := Gauge1.Progress 1.
if Gauge1.Progress = Gauge1.MaxValue then TForm(Gauge1.Parent).ModalResult := 1.
end.
end.
end.
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