Re: IHTMLElement::setAttribute

From:

"David Ching" <dc@remove-this.dcsoft.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sun, 8 Feb 2009 13:39:03 -0800

Message-ID:

<E77F4AB2-2120-4A28-AA52-D798550A6D7A@microsoft.com>

<pbruyant@yahoo.com> wrote in message
news:a2274836-ebb9-4036-a26c-afe7a64d1a38@o36g2000yqh.googlegroups.com...

Hello experts,
I am using MS VC 6.0. I've developped a small dialog-based app in
which I display some HTML contents in a CWebBrowser2 object. The HTML
document contains a <form></form> block from which I can get the
user's input using <input>, <textarea> and other tags. Getting the
user's inputs works using get
My problem is I can't set any attribute of any tag using setAttribute
().
For example,

HRESULT CMyApp::SetHtmlInputTextTag(IHTMLElement *pElement)
{
HRESULT hr=S_FALSE;
IHTMLInputElement *pInput=NULL;
BSTR bstrtemp=L"myValue";

hr=pElement->QueryInterface(IID_IHTMLInputElement,(void**)&pInput);
if (!FAILED(hr) && pInput != NULL)
   {
   hr=pInput->put_value(bstrtemp);
   pInput->Release();
   }
return hr;
}

has no effect.

I create a text range and use that to set the Input value:

       CComQIPtr<IHTMLInputElement> pInputElem(pHtmlElement);
       if ( pInputElem )
       {
        // Fill Field Value
        CComPtr<IHTMLTxtRange> pTxtRange;
        pInputElem->createTextRange (&pTxtRange);
        if ( pTxtRange )
        {
         _bstr_t bstrNewText (L"myValue");
         pTxtRange->put_text(bstrNewText);
        }
       }

-- David