在没有资源文件的C++中设置外壳图标

#include <Windows.h>

HICON g_hIcon = NULL;

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    // ...

    // 加载图标资源
    g_hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));

    // ...
}

HWND hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
    CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

if (hWnd) {
    // 设置窗口图标
    SendMessage(hWnd, WM_SETICON, ICON_BIG, (LPARAM)g_hIcon);
    SendMessage(hWnd, WM_SETICON, ICON_SMALL, (LPARAM)g_hIcon);

    // ...
}