Assertion Error with DoModal(), activated from a thread

[hanhao]

hi, as with the topic, i am a newbie at MFC programming and ii am having trouble with DoModal
it shows the window but immediately give an assertion error

http://img186.imageshack.us/img186/9563/assert9dk.jpg

here's how the application init looks like:

BOOL CAsevApp::InitInstance()
{
	time_stop_dlg dlg;
	m_pMainWnd = &dlg;
	AfxBeginThread ( th_start_accept, (LPVOID)this );
	return TRUE;
}

over here, time_stop_dlg is a class derived from CDialog, without any changes, but has been linked to IDD_MY_DIALOG_TO_SHOW (as suggested by classwizard)



this is the thread procedure:

UINT CAsevApp::th_start_accept( LPVOID lpvParam )
{
    CAsevApp *th_start_accept = (CAsevApp*)lpvParam;
    th_start_accept->process_received_msg(buffer);
   return 0;
}

process_received_msg(buffer) is a function member of CAsevApp

void CAsevApp::process_received_msg(char *msg)
{
		time_stop_dlg time_stop_dlg_obj;
		time_stop_dlg_obj.DoModal(); // NIGHTMARE BEGINS HERE!
}

a snippet of wincore assertion error:

BOOL PASCAL CWnd::WalkPreTranslateTree(HWND hWndStop, MSG* pMsg)
{
	ASSERT(hWndStop == NULL || ::IsWindow(hWndStop));
	ASSERT(pMsg != NULL);

	// walk from the target window up to the hWndStop window checking
	//  if any window wants to translate this message

	for (HWND hWnd = pMsg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
	{
		CWnd* pWnd = CWnd::FromHandlePermanent(hWnd);
		if (pWnd != NULL)
		{
			// target window is a C++ window
			if (pWnd->PreTranslateMessage(pMsg))
				return TRUE; // trapped by target window (eg: accelerators)
		}

		// got to hWndStop window without interest
		if (hWnd == hWndStop)
			break;
	}
	return FALSE;       // no special processing
}

http://img186.imageshack.us/img186/7370/retrn0wk.jpg

using
vc6.0 sp6

your assistance please!

[Salem]

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Assertion Error with DoModal(), activated from a thread
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