Re: Can I Initialize Windows Sockets in DllMain or CWinApp::InitIn

Why?
In order to understand the relation between DllMain and
WinApp::InitInstance, I have checked MFC source code. In C:\Program
Files\Microsoft Visual Studio\VC98\MFC\SRC\DLLMODUL.CPP (Line 72),
pApp->InitInstance() is called in DllMain as below. So I think the all
restriction which applies to DllMain ought to apply to InitInstance, too.

extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID
/*lpReserved*/)
{
    if (dwReason == DLL_PROCESS_ATTACH)
    {
        BOOL bResult = FALSE;

#ifdef _AFXDLL
        // wire up resources from core DLL
        AfxCoreInitModule();
#endif

        _AFX_THREAD_STATE* pState = AfxGetThreadState();
        AFX_MODULE_STATE* pPrevModState = pState->m_pPrevModuleState;

        // Initialize DLL's instance(/module) not the app's
        if (!AfxWinInit(hInstance, NULL, _T(""), 0))
        {
            AfxWinTerm();
            goto Cleanup; // Init Failed
        }

        // initialize the single instance DLL
        CWinApp* pApp; pApp = AfxGetApp();
        if (pApp != NULL && !pApp->InitInstance())
        {
            pApp->ExitInstance();
            AfxWinTerm();
            goto Cleanup; // Init Failed
        }
                     ...
}

"Scott McPhillips [MVP]" wrote: