VC中的__attribute __（（析构函数））等效？

Question

我查看了__attribute__((constructor)) equivalent in VC?和CRT Initialization，这对于特定于gcc的__attribute__((constructor))都有帮助。但是__attribute__((destructor))呢？是否有VC等价物？

Answer 1

如果您正在创建动态链接库，则可以让DllMain entry point处理此问题：

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    if (fdwReason == DLL_PROCESS_ATTACH)
    {
        // equivalent of __attribute__((constructor))...

        // return TRUE if succeeded, FALSE if you failed to initialize properly
        return TRUE; // I'm assuming you succeeded.
    }
    else if (fdwReason == DLL_PROCESS_DETACH)
    {
        // equivalent of __attribute__((destructor))...
    }

    // Return value is ignored when fdwReason isn't DLL_PROCESS_ATTACH, so we'll
    // just return TRUE.
    return TRUE;
}