unit dy219;

interface

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

type
TForm1 = class(TForm)
　　procedure FormCreate(Sender: TObject);
private
　　procedure sysmenu(var msg: twmmenuselect);message wm_syscommand;
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
var
i: integer;
begin
i := getsystemmenu(handle,false);
appendmenu(i,mf_separator,0,nil);
appendmenu(i,mf_string,100,'我的菜单(&E)');
end;

procedure TForm1.sysmenu(var msg: twmmenuselect);
begin
if msg.IDItem = 100 then
　　showmessage('您选择了自己添加的菜单！')
else
　　inherited;
end;

end.