如何在C++中将自定义项添加到系统菜单？

#include<Windows.h>

// 创建一个新的菜单项
HMENU hMenu = CreateMenu();

// 添加自定义菜单项
AppendMenu(hMenu, MF_STRING, ID_MY_MENU_ITEM, TEXT("My Custom Menu Item"));

// 获取系统菜单句柄
HWND hWnd = GetDesktopWindow();
HMENU hSysMenu = GetSystemMenu(hWnd, FALSE);

// 将自定义菜单项添加到系统菜单
InsertMenu(hSysMenu, 0, MF_BYPOSITION | MF_POPUP, (UINT_PTR)hMenu, TEXT("My Custom Menu"));

// 处理菜单项点击事件
switch (LOWORD(wParam)) {
    case ID_MY_MENU_ITEM:
        // 自定义菜单项被点击时执行的代码
        break;
}

#include<Windows.h>

// 自定义菜单项ID
#define ID_MY_MENU_ITEM 1000

// 窗口过程函数
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    switch (message) {
        case WM_CREATE:
            // 创建一个新的菜单项
            HMENU hMenu = CreateMenu();
            // 添加自定义菜单项
            AppendMenu(hMenu, MF_STRING, ID_MY_MENU_ITEM, TEXT("My Custom Menu Item"));
            // 获取系统菜单句柄
            HMENU hSysMenu = GetSystemMenu(hWnd, FALSE);
            // 将自定义菜单项添加到系统菜单
            InsertMenu(hSysMenu, 0, MF_BYPOSITION | MF_POPUP, (UINT_PTR)hMenu, TEXT("My Custom Menu"));
            break;
        case WM_SYSCOMMAND:
            // 处理菜单项点击事件
            switch (LOWORD(wParam)) {
                case ID_MY_MENU_ITEM:
                    // 自定义菜单项被点击时执行的代码
                    MessageBox(hWnd, TEXT("My Custom Menu Item Clicked"), TEXT("Notification"), MB_OK);
                    break;
            }
            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) {
    // 注册窗口类
    WNDCLASSEX wc = {0};
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.hInstance = hInstance;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszClassName = TEXT("MyWindowClass");
    RegisterClassEx(&wc);

    // 创建窗口
    HWND hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, TEXT("MyWindowClass"), TEXT("My Window"),
        WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 500, 300, NULL, NULL, hInstance, NULL);

    // 显示窗口
    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    // 消息循环
    MSG msg = {0};
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return msg.wParam;
}