Puzzling OnInitialUpdate() behavior for CHtmlView derived class

Nish Nishant

Here is my code :-

void CReportView::OnInitialUpdate()
{
Navigate2(_T("about:blank"),NULL,NULL);

IHTMLDocument2 \*pDoc=(IHTMLDocument2 \*)GetHtmlDocument();        
if(!pDoc)
{        
    return;
}    

HRESULT hr;
SAFEARRAY\* psa = SafeArrayCreateVector(VT\_VARIANT, 0, 1);
VARIANT \*param;    

MessageBox("L"); // If I comment out this line it fails

BSTR bsData = m\_html.AllocSysString();
hr =  SafeArrayAccessData(psa, (LPVOID\*)&param);
param->vt = VT\_BSTR;
param->bstrVal = bsData;
hr = pDoc->write(psa);
hr = pDoc->close();
SysFreeString(bsData);
SafeArrayDestroy(psa);

}

You can see the MessageBox call there. If the MessageBox is there, it works right and shows the html rendering of the source contained in m_html which is a CString. If I remove the MessageBox, the html comes rightly for about 0.005 seconds [approximate guess] and then it becomes blank :-( Regards Nish

Author of the romantic comedy Summer Love and Some more Cricket [New Win] Review by Shog9 Click here for review[NW]

Nish Nishant

Okay, this is a sorta make-shift work-around :-)

void CReportView::OnInitialUpdate()
{
CHtmlView::OnInitialUpdate();

Navigate2(\_T("about:blank"),NULL,NULL);

}

That's all :-) Now I have my own

void CReportView::RenderView()
{
...
...
}

This has sorta solved the issue. I call RenderView when I want to change the contents Nish :~

Author of the romantic comedy Summer Love and Some more Cricket [New Win] Review by Shog9 Click here for review[NW]

Gavin Jerman

An off topic question - how did you get your code snippet nicely formatted? Gavin

Nish Nishant

Using the PRE tag :-)

Author of the romantic comedy Summer Love and Some more Cricket [New Win] Review by Shog9 Click here for review[NW]