Re: MFC 9 , the next issue

Im getting a ASSERT on File/New

Code was changed as follows:

CWinApp to CWinAppEx
CMDIChildWnd to CMDIChildWndEx
CMDIFrameWnd toCMDIFrameWndEx

etc etc

I do the following

m_pDocTemplate = new CMultiDocTemplate(
IDR_DXTERMTYPE,
RUNTIME_CLASS(CDXTermDoc),
RUNTIME_CLASS (CSession), // csession is the CMDIChildWndEx
RUNTIME_CLASS(CTextView));
m_pDocTemplate->SetContainerInfo(IDR_MAINFRAME);
AddDocTemplate(m_pDocTemplate);

CSession does have a splitter windows in it. CMysplitter derived from
CSplitterWndEx

So when I do a file/new I can get to the constructor of CSession::CSession
and trace through that, but then I get an assert
in winmdi.cpp at line 504, which is

ASSERT(::IsWindow(pParentWnd->m_hWndMDIClient));

All this worked before I moved to the new classes, have I missed anything?

Thanks
Rick