我编辑了一个菜单ID为IDR_MENU1，但在程序中却不显示,为什么?

[m0772]

/*************************************************
在程序中我这样定义：
wndclass.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);
***************************************************/

//附原程序
#include <windows.h>

#include "resource.h"

const char g_szClassName[] = "myWindowClass";

LRESULT CALLBACK WndProc(HWND hwnd, UINT Message,
WPARAM wParam, LPARAM lParam)
{
switch(Message)
{
case WM_COMMAND:
switch(LOWORD(wParam))
{
case ID_FILE_EXIT:
PostMessage(hwnd, WM_CLOSE, 0, 0);
break;
case ID_STUFF_GO:
MessageBox(hwnd, "clicked Go!", "info!",MB_OK);
break;
}
break;

case WM_CLOSE:
DestroyWindow(hwnd);
break;

case WM_DESTROY:
PostQuitMessage(0);
break;

default:
return DefWindowProc(hwnd, Message, wParam, lParam);
}
return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;

wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);
wc.lpszClassName = g_szClassName;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Registration Failed!", "Error!",MB_OK);
return 0;
}

hwnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
g_szClassName,
"A Menu",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
NULL, NULL, hInstance, NULL);

if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed!", "Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return Msg.wParam;
}

[m0772]

对不起,上面写错了
/*************************************************
在程序中我这样定义：
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);
***************************************************/

[zbc]

如下的程序，帮你在系统菜单中增加一菜单项，并能响应用户的操作：
.h
//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed Components
TButton *Button1;
void __fastcall Button1Click(TObject *Sender);
private: // User declarations
public: // User declarations
BEGIN_MESSAGE_MAP
MESSAGE_HANDLER(WM_SYSCOMMAND,TWMMenuSelect,WmSysCommand)
END_MESSAGE_MAP(TForm)
void __fastcall WmSysCommand(TWMMenuSelect &message);
__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

.cpp
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
TMenuItemInfo menu;
menu.cbSize = sizeof(menu);
menu.fMask = MIIM_ID|MIIM_TYPE;
menu.fType = MFT_STRING;
menu.dwTypeData = "这是一个小例子\t Alt+m";
menu.wID = 200;
HMENU menuHandle = GetSystemMenu(Handle,false);
InsertMenuItem(menuHandle,(DWORD)0,true,&menu); //当为true时，第二个参数指定了菜单项的位置
}
//---------------------------------------------------------------------------
void __fastcall TForm1::WmSysCommand(TWMMenuSelect &message)
{
TForm::Dispatch(&message);
if (message.IDItem == 200)
ShowMessage("true");
}