Re: Using MFC dll from non-MFC application

From:
"David Ching" <dc@remove-this.dcsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Sat, 10 May 2008 10:49:14 -0700
Message-ID:
<zclVj.2367$ah4.1352@flpi148.ffdc.sbc.com>
"JRGlide" <JRGlide@discussions.microsoft.com> wrote in message
news:6475E827-3EE4-4CD8-8B17-5466E0A7F30E@microsoft.com...

/////////////////////////////////////////////////////////////////////////////
// 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;
}


The callstack showed a crash in CFrameWnd::OnClose(). Can yo break in the
debugger to show the exact source line of the crash?

Hmm, I've never called theApp.Run() from an exported function like you are
doing. I think theApp is already being run! It is run automatically when
the DLL is loaded. theApp.Run() calls InitInstance(). If you remove the
call, does InitInstance() still get called?

Thanks,
David

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