Windows未收到WM_COMMAND消息過程

我正在用快捷方式/快捷菜單創建系統托盤程序，但似乎無法在Windows過程中收到WM_COMMAND消息。當我點擊菜單項時，它不會發送，我一直在檢查是否已正確設置菜單。Windows未收到WM_COMMAND消息過程

這裏是我的代碼：「請不要在發佈WM_COMMAND消息只是返回你會貼出值」

#include <Windows.h> 
#include <stdio.h> 
#include "resource.h" 
#define WM_TRAYICON (WM_USER + 0x0001) //a custom message for the notification icon 

HWND hwnd; //window handle 
HINSTANCE hinst; //module handle 
WNDCLASSEX wnd; //window class 
MSG msg; //event message or notification 
NOTIFYICONDATA nid; //notification icon object 
HMENU cmenu; 
MENUITEMINFO menuitem1; 
MENUITEMINFO menuitem2; 
CURSORINFO cursor; 

LRESULT CALLBACK MainWProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) 
{ 
    switch(uMsg) 
    { 
    case WM_COMMAND: 
     printf("asfd\r\n"); 
     break; 
    case WM_CREATE: 
     printf("just created\r\n"); 
     break; 
    case WM_TRAYICON: 
     switch(LOWORD(lParam)) 
     { 
     case WM_CONTEXTMENU: 
      GetCursorInfo(&cursor); 
      //printf("xPos: %d\r\nyPos = %d\r\n\r\n", xPos, yPos); 
      TrackPopupMenuEx(cmenu, TPM_RETURNCMD | TPM_LEFTBUTTON | TPM_NOANIMATION | TPM_HORIZONTAL | TPM_VERTICAL, cursor.ptScreenPos.x, cursor.ptScreenPos.y, hwnd, NULL); 
      //DestroyMenu(
      break; 
     } 
     break; 
    case WM_INITMENU: 
     printf("open menu\r\n"); 
     break; 
    case WM_DESTROY: 
     //clean things up 
     Shell_NotifyIcon(NIM_DELETE, &nid); 
     break; 
    default: 
     break; 
    } 

    return DefWindowProc(hwnd, uMsg, wParam, lParam); 
} 

void main() 
{ 
    int result; 

    hinst = GetModuleHandle(NULL); 
    cursor.cbSize = sizeof(cursor); 

    memset(&wnd, 0, sizeof(wnd)); 
    wnd.cbSize = sizeof(wnd); 
    wnd.lpszClassName = "MainWClass"; 
    wnd.lpfnWndProc = MainWProc; 
    wnd.hInstance = hinst; 
    result = RegisterClassEx(&wnd); 

    hwnd = CreateWindowEx 
     (
     0, //extended styles 
     wnd.lpszClassName, //class name 
     "Main Window", //window name 
     WS_OVERLAPPEDWINDOW | WS_HSCROLL | WS_VSCROLL | WS_MINIMIZEBOX, //style tags 
     CW_USEDEFAULT, //horizontal position 
     CW_USEDEFAULT, //vertical position 
     CW_USEDEFAULT, //width 
     CW_USEDEFAULT, //height 
     (HWND) NULL, //parent window 
     (HMENU) NULL, //class menu 
     (HINSTANCE) wnd.hInstance, //some HINSTANCE pointer 
     NULL //Create Window Data? 
     ); 
    if(!hwnd) 
    { 
     printf("CreateWindowEx failed: %d\n", GetLastError()); 
     Sleep(INFINITE); 
    } 

    nid.cbSize = sizeof(nid); 
    nid.hWnd = hwnd; 
    nid.uID = 1; 
    nid.uVersion = NOTIFYICON_VERSION_4; 
    nid.uCallbackMessage = WM_TRAYICON; 
    nid.hIcon = LoadIcon(hinst, MAKEINTRESOURCE(IDI_ICON1)); 
    strcpy(nid.szTip, "My Tooltip!"); 
    nid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP | NIF_SHOWTIP; 

    cmenu = CreatePopupMenu(); 
    menuitem1.cbSize = sizeof(menuitem1); 
    menuitem1.fMask = MIIM_TYPE; 
    menuitem1.fType = MFT_STRING; 
    menuitem1.hSubMenu = NULL; 
    //menuitem1.cch = ; 
    menuitem1.dwTypeData = "Open a world of wonder!"; 
    InsertMenuItem(cmenu, 0, true, &menuitem1); 

    if(! Shell_NotifyIcon(NIM_ADD, &nid)) 
    { 
     printf("Shell_NotifyIcon(NIM_ADD, &nid) failed.\r\n"); 
     Sleep(INFINITE); 
    } 
    if(! Shell_NotifyIcon(NIM_SETVERSION, &nid)) 
    { 
     printf("Shell_NotifyIcon(NIM_SETVERSION, &nid) failed.\r\n"); 
     Sleep(INFINITE); 
    } 

    UpdateWindow(hwnd); 
    for(; ;) 
    { 
     if(GetMessage(&msg, hwnd, 0, 0)) 
     { 
      TranslateMessage(&msg); 
      DispatchMessage(&msg); 
     } 
    } 
}

來源

2012-02-27 Joshua

爲什麼在基於GUI的應用程序中使用printf？使用TRACE宏查看調試窗口中的輸出。 – Ajay 2012-02-27 05:50:55

我希望在控制檯上看到它。 – Joshua 2012-02-27 06:19:27

這是你的選擇。但對我來說沒有意義。 Debug-Windows不過是一個控制檯。爲GUI啓動另一個控制檯並不意味着合乎邏輯。你的GUI程序應該以'WinMain'開頭，而不是'main'（原因很多）。所以，如果你的程序以'WinMain'開頭，那麼printf將無法工作。 – Ajay 2012-02-27 07:59:26

嗯，你通過了TPM_RETURNCMD標誌，這意味着

來源

2012-02-27 04:19:36

Oh shit ....我以爲「返回菜單項標識符」意味着將其返回給wndproc。非常感謝！ – Joshua 2012-02-27 06:17:36

Windows未收到WM_COMMAND消息過程

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