为什么窗口不显示菜单呢？
#include <windows.h>
#include "resource.h"
#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) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static int idColor[5] = {WHITE_BRUSH, LTGRAY_BRUSH, GRAY_BRUSH, DKGRAY_BRUSH, BLACK_BRUSH};
static int iSelection = IDM_BKGND_WHITE;
HMENU hMenu;
switch(message)
{
case WM_COMMAND:
hMenu = GetMenu(hwnd);
switch(LOWORD(wParam))
{
case IDM_FILE_NEW:
case IDM_FILE_OPEN:
case IDM_FILE_SAVE:
case IDM_FILE_SAVE_AS:
MessageBeep (0) ;
return 0 ;
case IDM_APP_EXIT:
SendMessage(hwnd, WM_CLOSE, 0, 0);
return 0;
case IDM_EDIT_UNDO:
case IDM_EDIT_CUT:
case IDM_EDIT_COPY:
case IDM_EDIT_PASTE:
case IDM_EDIT_CLEAR:
MessageBeep (0) ;
return 0 ;
case IDM_BKGND_WHITE: // Note: Logic below
case IDM_BKGND_LTGRAY: // assumes that IDM_WHITE
case IDM_BKGND_GRAY: // through IDM_BLACK are
case IDM_BKGND_DKGRAY: // consecutive numbers in
case IDM_BKGND_BLACK:
CheckMenuItem(hMenu, iSelection, MF_UNCHECKED);
iSelection = LOWORD(wParam);
CheckMenuItem(hMenu, iSelection, MF_CHECKED);
SetClassLong(hwnd,GCL_HBRBACKGROUND, (LONG) GetStockObject(idColor[LOWORD(wParam)] - IDM_BKGND_WHITE));
InvalidateRect(hwnd, NULL, TRUE);
case IDM_TIMER_START:
if (SetTimer(hwnd, ID_TIMER, 1000, NULL))
{
EnableMenuItem(hMenu, IDM_TIMER_START, MF_GRAYED);
EnableMenuItem(hMenu, IDM_TIMER_STOP, MF_ENABLED);
}
return 0;
case IDM_TIMER_STOP:
KillTimer(hwnd, ID_TIMER);
EnableMenuItem(hMenu, IDM_TIMER_START, MF_ENABLED);
EnableMenuItem(hMenu, IDM_TIMER_STOP, MF_GRAYED);
return 0;
case IDM_APP_HELP:
MessageBox(hwnd, TEXT("Help not yet implemented!"),
szAppName, MB_ICONINFORMATION | MB_OK);
return 0;
}
break;
case WM_TIMER:
MessageBeep(0);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
MENUITEM "&Save", IDM_FILE_SAVE
MENUITEM "Save &As...", IDM_FILE_SAVE_AS
...........
更简单的可以这样做,如果你建一个菜单标识为IDR_MENU1.
wndclass.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);
