File: OBJCORE.CPP LINE 43 error

[guosenjuncs]

I have no idea why this isn't working. I am trying to create an MDI child frame to show a class derived from CScrollView. I have no clue why this isn't working:


My Code:
void CMainFrame::OnFileNew()
{
// m_bPreviewed = TRUE;
if(NULL != m_pChildFrame)
{
m_pChildFrame->MDIActivate();
return;
}

m_pChildFrame = new CChildFrame();
CCreateContext context;
context.m_pNewViewClass = RUNTIME_CLASS(CMicroscopeView);
if(!m_pChildFrame->LoadFrame(IDI_ICON1,WS_MAXIMIZE|WS_OVERLAPPEDWINDOW,this,&context))
return;
m_pChildFrame->ShowWindow(SW_SHOWMAXIMIZED);
m_pChildFrame->InitialUpdateFrame(NULL, TRUE);
}

// Assertion happens here in C:\...\SRC\OBJCORE.CPP LINE 43


BOOL CObject::IsKindOf(const CRuntimeClass* pClass) const
{
ASSERT(this != NULL);
// it better be in valid memory, at least for CObject size
ASSERT(AfxIsValidAddress(this, sizeof(CObject)));

// simple SI case
CRuntimeClass* pClassThis = GetRuntimeClass();
return pClassThis->IsDerivedFrom(pClass);
}

How to resolve this problem?

[vcmute]

context.m_pCurrentDoc = GetActiveDocument();