是哪句代码创建了菜单

Question

windows程序设计第十章的MenuDemo.c程序中是哪句代码让菜单显示在了窗口上.
我按照源程序自己写了个简单的程序 但是菜单不能被正常显示. 以下是源代码

#include
#include "resource.h"

#define UNICODE
#define ID_TIMER 1

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

TCHAR szAppName[] = TEXT ("MenuDemo") ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;

 wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
 wndclass.lpfnWndProc   = WndProc ;
 wndclass.cbClsExtra    = 0 ;
 wndclass.cbWndExtra    = 0 ;
 wndclass.hInstance     = hInstance ;
 wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
 wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
 wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
 wndclass.lpszMenuName  = szAppName ;
 wndclass.lpszClassName = szAppName ;

 if (!RegisterClass (&wndclass))
 {
      MessageBox (NULL, TEXT ("This program requires Windows NT!"),
                  szAppName, MB_ICONERROR) ;
      return 0 ;
 }

 hwnd = CreateWindow (szAppName, TEXT ("Menu Demonstration"),
                      WS_OVERLAPPEDWINDOW,
                      CW_USEDEFAULT, CW_USEDEFAULT,
                      CW_USEDEFAULT, CW_USEDEFAULT,
                      NULL, NULL, hInstance, NULL) ;

 ShowWindow (hwnd, iCmdShow) ;
 UpdateWindow (hwnd) ;
    以上是书中源代码.
查了资料提示说.
    wndclass.lpszMenuName = NULL;部分，改成：wndclass.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);或者

ShowWindow之前添加如下代码：
HMENU hMenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_MENU1));
SetMenu(hwnd, hMenu);

这两种方法我试过的确可以 但书中的方式显然不同.

Answer 1

LoadMenu装入资源里面的菜单，而资源可以在资源编辑器里编辑