关于delphi中的RzGroupBar的问题

unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Menus, RzGroupBar, StdCtrls;type
TForm1 = class(TForm)
RzGroupBar1: TRzGroupBar;
PopupMenu1: TPopupMenu;
N1: TMenuItem;
N2: TMenuItem;
Button1: TButton;
procedure N1Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure N2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
procedure SubItemClick(Sender: TObject);
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
var
AIndex: Integer;
begin for AIndex := 0 to RzGroupBar1.GroupCount - 1 do
begin
if RzGroupBar1.Groups[AIndex].Opened then
ShowMessage(RzGroupBar1.Groups[AIndex].Caption);
end;
end;procedure TForm1.N1Click(Sender: TObject);
var
MainName: String;
Group: TRzGroup;
begin
MainName:= InputBox('请输入主菜单名称：','主菜单：','');
if MainName = '' then
Exit;
Group:= TRzGroup.Create(RzGroupBar1);
Group.Caption:= MainName;
RzGroupBar1.AddGroup(Group);
end;procedure TForm1.N2Click(Sender: TObject);
var
SubName: String;
AIndex: Integer;
GroupItem: TRzGroupItem;
begin
SubName:= InputBox('请输入子菜单名称：','子菜单','');
if SubName = '' then
Exit;
for AIndex := 0 to RzGroupBar1.GroupCount - 1 do
begin
if RzGroupBar1.Groups[AIndex].Opened then
begin
GroupItem:= RzGroupBar1.Groups[AIndex].Items.Add;
GroupItem.Caption:= SubName;
GroupItem.Selected:= True;
GroupItem.Data:= PAnsiChar('C:\WINDOWS\system32\calc.exe');
GroupItem.OnClick:= SubItemClick;
end;
end;end;procedure TForm1.SubItemClick(Sender: TObject);
begin
WinExec(TRzGroupItem(Sender).Data,SW_NORMAL);
end;end.