delphi7 修改系统菜单之sysmenu事件
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;//此处出错
{ 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.


//错误提示：[Error] Unit1.pas(25): Undeclared identifier: 'twmenuselect' 请大家看看在哪错了，sysmenu已声明的！

[解决办法]
twmmenuselect不对
[解决办法]
错误提示：[Error] Unit1.pas(25): Undeclared identifier: 'twmenuselect' 请大家看看在哪错了，sysmenu已声明的！
错误提示的很明白twmenuselect是没有定义的，应该是TWMMenuSelect，少个‘m’
你写错了，你程序里肯定写错了，你在好好看看吧