{*******************************************************}
{ }
{ Delphi ESite : http://yckxzjj.vip.sina.com }
{ KingLong Studio:刀剑如梦软件创作室 }
{ QQ：20775028 E-Mail : [email protected] }
{ Copyright (c) 2003 KingLong Software Studio }
{ }
{*******************************************************}
unit UAddProgressbar;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, StdCtrls, Menus;
type
TAddProgressbarFrm = class(TForm)
Status: TStatusBar;
Button1: TButton;
procedure StatusDrawPanel(StatusBar: TStatusBar;
Panel: TStatusPanel; const Rect: TRect);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
FProgress: TProgressbar; //TProgressbar类型的变量
FStatusDrawRect: TRect; //记录要插入状态条的坐标范围
procedure AddProgressToStatus;
public
{ Public declarations }
end;
var
AddProgressbarFrm: TAddProgressbarFrm;
implementation
{$R *.dfm}
procedure TAddProgressbarFrm.StatusDrawPanel(StatusBar: TStatusBar;
Panel: TStatusPanel; const Rect: TRect);
begin
{记录要实现状态条的坐标范围}
FStatusDrawRect := Rect;
end;
procedure TAddProgressbarFrm.AddProgressToStatus;
var
i,Count,StatusPanelWidth: Integer;
begin
FProgress := TProgressbar.Create(AddProgressbarFrm);
{定义进程条的最大值}
Count := 3000;
StatusPanelWidth := Status.Panels.Items[2].Width;
{改变进度条宽度}
Status.Panels.Items[2].Width := 150;
Status.Repaint;
with FProgress do
begin
Top := FStatusDrawRect.Top;
Left := FStatusDrawRect.Left;
{设定进程条的宽度和高度}
Width := FStatusDrawRect.Right - FStatusDrawRect.Left;
Height := FStatusDrawRect.Bottom - FStatusDrawRect.Top;
Visible := True;
try
Parent := Status;
{进程条的最小和最大值}
Min := 0;
Max := Count;
Step := 1;
for i := 1 to Count do
Stepit;
MessageBox(Handle,#13+'现在，进程条将要从内存中被释放'+#13+#13
+' [刀剑如梦软件创作室]','信息提示',MB_OK+MB_ICONINFORMATION);
finally
{从内存中释放进程条}
Free;
end;
end;
{恢复状态条的宽度}
Status.Panels.Items[2].Width := StatusPanelWidth;
end;
procedure TAddProgressbarFrm.Button1Click(Sender: TObject);
begin
AddProgressToStatus;
end;
end. 
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