Re: Using MFC dll from non-MFC application

From:
=?Utf-8?B?SlJHbGlkZQ==?= <JRGlide@discussions.microsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 9 May 2008 18:42:01 -0700
Message-ID:
<6475E827-3EE4-4CD8-8B17-5466E0A7F30E@microsoft.com>

What sort of DLL is it? Regular or MFC Extension. It should be a
Regular DLL and you should use AFX_MANAGE_STATE to change the state as
needed.

---
Ajay


Thank you for responding Ajay. Yes, I am using a regular dll since I need
to call it from a non-MFC program. From what I understand, I only need the
AFX_MANAGE_STATE if I am linking to MFC dynamically. But just to be sure I
have it in anyway, but it doesn't help. It crashes with or without it. Here
is the code with the hook function to the application and InitInstance. I
tried to strip it down as much as possible. Anybody see anything that looks
fishy?

Thank you.

/////////////////////////////////////////////////////////////////////////////
// The one and only CViewPointCloudApp object

CViewPointCloudApp theApp;

extern "C" {

__declspec(dllexport) void ViewPointCloud (void);

void ViewPointCloud (void)
{
    AFX_MANAGE_STATE (AfxGetStaticModuleState());
    theApp.Run();
}
} // extern "C"

BOOL CViewPointCloudApp::InitInstance()
{
    CWinApp::InitInstance();

    AfxEnableControlContainer();

    // Change the registry key under which our settings are stored.
    // TODO: You should modify this string to be something appropriate
    // such as the name of your company or organization.
    SetRegistryKey(_T("Local AppWizard-Generated Applications"));

    LoadStdProfileSettings(); // Load standard INI file options (including MRU)

    // Register the application's document templates. Document templates
    // serve as the connection between documents, frame windows and views.

    CSingleDocTemplate* pDocTemplate;
    pDocTemplate = new CSingleDocTemplate(
        IDR_MAINFRAME,
        RUNTIME_CLASS(CViewPointCloudDoc),
        RUNTIME_CLASS(CMainFrame), // main SDI frame window
        RUNTIME_CLASS(CViewPointCloudView));
    AddDocTemplate(pDocTemplate);

    // Parse command line for standard shell commands, DDE, file open
    CCommandLineInfo cmdInfo;
    ParseCommandLine(cmdInfo);

    // Dispatch commands specified on the command line
    if (!ProcessShellCommand(cmdInfo))
        return FALSE;

    // The one and only window has been initialized, so show and update it.
    m_pMainWnd->ShowWindow(SW_SHOW);
    m_pMainWnd->UpdateWindow();

    return TRUE;
}

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