Re: CHtmlView

Hans-J. Ude <>
Mon, 02 Jun 2008 09:43:42 +0200
Alexander Smirnov <> wrote:

in CMainFrame::OnCreate I create it:

m_wndHtml.Create(NULL, NULL, AFX_WS_DEFAULT_VIEW,CRect(0, 0, 0, 0),

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?

There was an interseting article by Paul DiLascia about his CHtmlCtrl
class. I couldn't find the original back but there is something else
about it:

// Override to avoid CView stuff that assumes a frame.
void CHtmlCtrl::OnDestroy()
    if (!m_bCtl_mode){

    // This is probably unecessary since ~CHtmlView does it, but
    // safer to mimic CHtmlView::OnDestroy.
    if (m_pBrowserApp) {
        m_pBrowserApp = NULL;
    CWnd::OnDestroy(); // bypass CView doc/frame stuff

The last line in OnDestroy() about bypassing CView doc/frame stuff
might be important in your case.


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