Unhandled exception at 0x7c22c81a (mfc71d.dll) during InitDialog

[Gernot]

Hi,

i have a dialog based MFC app.
During my coding i get now following error during the Init Process of the first dialog!

So this means before i can see a dialog my app crashes:

Unhandled exception at 0x7c22c81a (mfc71d.dll) in menutree.exe: 0xC0000005: Access violation reading location 0x04a9092d.

Here the Call Stack:

mfc71d.dll!AfxCallWndProc(CWnd * pWnd=0x0012fdac, HWND__ * hWnd=0x00130810, unsigned int nMsg=15, unsigned int wParam=0, long lParam=0) Line 241 + 0x14 C++
mfc71d.dll!AfxWndProc(HWND__ * hWnd=0x00130810, unsigned int nMsg=15, unsigned int wParam=0, long lParam=0) Line 389 C++
> mfc71d.dll!AfxWndProcBase(HWND__ * hWnd=0x00130810, unsigned int nMsg=15, unsigned int wParam=0, long lParam=0) Line 209 + 0x15 C++
user32.dll!77d486cb()
user32.dll!77d4879f()
user32.dll!77d492ab()
user32.dll!77d492f5()
ntdll.dll!77f75da3()
user32.dll!77d4ab37()
user32.dll!77d4ab23()
user32.dll!77d565cb()
user32.dll!77d5657b()
user32.dll!77d5659f()
mfc71d.dll!CWnd::CreateDlgIndirect(const DLGTEMPLATE * lpDialogTemplate=0x004a6ed0, CWnd * pParentWnd=0x00000000, HINSTANCE__ * hInst=0x00400000) Line 310 + 0x2a C++
mfc71d.dll!CDialog:oModal() Line 519 + 0x20 C++
menutree.exe!CMenutreeApp::InitInstance() Line 63 + 0xb C++
mfc71d.dll!AfxWinMain(HINSTANCE__ * hInstance=0x00400000, HINSTANCE__ * hPrevInstance=0x00000000, char * lpCmdLine=0x00141f4a, int nCmdShow=1) Line 39 + 0xb C++
menutree.exe!WinMain(HINSTANCE__ * hInstance=0x00400000, HINSTANCE__ * hPrevInstance=0x00000000, char * lpCmdLine=0x00141f4a, int nCmdShow=1) Line 25 C++
menutree.exe!WinMainCRTStartup() Line 390 + 0x39 C
kernel32.dll!77e8141a()


The error occure on following part:
wincore.cpp

/////////////////////////////////////////////////////////////////////////////
// Official way to send message to a CWnd

LRESULT AFXAPI AfxCallWndProc(CWnd* pWnd, HWND hWnd, UINT nMsg,
	WPARAM wParam = 0, LPARAM lParam = 0)
{
	_AFX_THREAD_STATE* pThreadState = _afxThreadState.GetData();
	MSG oldState = pThreadState->m_lastSentMsg;   // save for nesting
	pThreadState->m_lastSentMsg.hwnd = hWnd;
	pThreadState->m_lastSentMsg.message = nMsg;
	pThreadState->m_lastSentMsg.wParam = wParam;
	pThreadState->m_lastSentMsg.lParam = lParam;

#ifdef _DEBUG
	_AfxTraceMsg(_T("WndProc"), &pThreadState->m_lastSentMsg);
#endif

	// Catch exceptions thrown outside the scope of a callback
	// in debug builds and warn the user.
	LRESULT lResult;
	TRY
	{
#ifndef _AFX_NO_OCC_SUPPORT
		// special case for WM_DESTROY
		if ((nMsg == WM_DESTROY) && (pWnd->m_pCtrlCont != NULL))
			pWnd->m_pCtrlCont->OnUIActivate(NULL);				
#endif

		// special case for WM_INITDIALOG
		CRect rectOld;
		DWORD dwStyle = 0;
		if (nMsg == WM_INITDIALOG)
			_AfxPreInitDialog(pWnd, &rectOld, &dwStyle);

		// delegate to object's WindowProc
		lResult = pWnd->WindowProc(nMsg, wParam, lParam);   :confused: 

		// more special case for WM_INITDIALOG
		if (nMsg == WM_INITDIALOG)
			_AfxPostInitDialog(pWnd, rectOld, dwStyle);
	}
	CATCH_ALL(e)
	{
		lResult = AfxProcessWndProcException(e, &pThreadState->m_lastSentMsg);
		TRACE(traceAppMsg, 0, "Warning: Uncaught exception in WindowProc (returning %ld).\n",
			lResult);
		DELETE_EXCEPTION(e);
	}
	END_CATCH_ALL

	pThreadState->m_lastSentMsg = oldState;
	return lResult;
}

what can be the problem??

Do you need more infos to help me!

Thanks!

Gernot

[MrViggy]

Look in your function " menutree.exe!CMenutreeApp::InitInstance() Line 63 + 0xb C++" This is where the problem is.

What does your InitInstance look like?

Viggy

[Gernot]

Hi,

here is my initInstance:

Line 63 is marked bold!!

BOOL CMenutreeApp::InitInstance()
{
	// InitCommonControls() is required on Windows XP if an application
	// manifest specifies use of ComCtl32.dll version 6 or later to enable
	// visual styles.  Otherwise, any window creation will fail.
	InitCommonControls();

	CWinApp::InitInstance();

	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	// of your final executable, you should remove from the following
	// the specific initialization routines you do not need
	// 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"));

	CMenutreeDlg dlg;
	m_pMainWnd = &dlg;
	INT_PTR nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}

But whats the problem!
This is generated automatically from the .Net environment!?!?!?!?

Thanks

[Gernot]

HI!

I found the error!!!!

I load during the OnInitDialog the different Icons, which i use.

hIcon[0] = AfxGetApp()->LoadIcon(IDI_COMP);
hIcon[1] = AfxGetApp()->LoadIcon(IDI_COMP1);
....

and this runs until 24 items.

And i set the HICON hIcon in the header file only to 23. So it crashes, because i try to access a not existing hicon element.

Thanks for you investigation

bye
Gernot

[MrViggy]

That'll do it!!!!

Viggy

[maas]

Hello.. i have same problem like this. Please help me.

[VictorN]

Hello.. i have same problem like this. Please help me.

Well, then fix it the same way like this.

[VictorN]

[thread was moved from Managed C++/CLI forum...]

[Eri523]

[thread was moved from Managed C++/CLI forum...]

Eventually... It's been in C++/CLI since 11 years... ☺

[VictorN]

Eventually... It's been in C++/CLI since 11 years... ☺

Yes. Unfortunately... Although there is nothing concerning managed code. Only the native one.