Re: using Document object from CFrameWnd

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Fri, 23 Jan 2009 13:41:57 -0500
When you create multiple views in a splitter you typically do not need or
want the default view that is created in InitInstance. You can change the
call to CSingleDocTemplate by passing a NULL as the view class, to not
create that default view.

"nexolite" <> wrote in message

I have created a CFameWnd as a view in a split window but I am facing a
serious problem, I am creating a toolbar in that window ,that toolbar
appears correctly but the background is the CFormView which was the
window(as specified in the CSingleDocTemplate() in InitInstance() )!!

after clicking close ,there is a Access violation while trying to call

if (!AfxIsValidAddress(pOb, pOb->GetRuntimeClass()->m_nObjectSize, FALSE))
in objcore.cpp

and it is the __vfptr of pOb whose address is shown to access violated.


"David Wilkinson" wrote:

Giovanni Dicanio wrote:

"nexolite" <> ha scritto nel

I have created a MFC SDI app in which CFrameWnd derived classis used
as a view.
How can I get a pointer to the document object?

CFrameWnd::GetActiveDocument() ?


If the CFrameWnd is just "used as a view", will it be hooked up correctly
to MFC
so that GetActiveDocument() will work? I wouldn't think so.

I would have thought you would need to do something like

CFrameWnd* pFrame = (CFrameWnd*)AfxGetMainWnd();
CMyDocument* pDoc = (CMyDocument*)pFrame->GetActiveDocument();

or maybe better pass a CMyDocument* pointer to the new CFrameWnd and
store it in
a member variable,

David Wilkinson
Visual C++ MVP

Scott McPhillips [VC++ MVP]

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