Solved

I have a CComPtr<IWebBrowser2> m_pWB2, how can I enumerate all the document elements?

Posted on 2009-07-02
2
545 Views
Last Modified: 2013-12-04
In my DOWNLOADCOMPLETE event I want to enumerate all ATML tags, and, say, see their InnerHTML content.

How do I get this done starting with my IWebBrowser2 * ?
0
Comment
Question by:yossikally
  • 2
2 Comments
 
LVL 19

Expert Comment

by:LordOfPorts
ID: 24767025
The thread at http://www.experts-exchange.com/Programming/Languages/CPP/Q_20194736.html provides a sample that might be exactly what you are looking for.

Looking at the description of the DownloadComplete http://msdn.microsoft.com/en-us/library/aa768331%28VS.85%29.aspx event it states that it fires when a navigation operation finishes, is halted, or fails which might give you trouble when you try to traverse the document especially if the latter two cases occur. Perhaps NavigateComplete or NavigateComplete2 might be better events.
0
 
LVL 19

Accepted Solution

by:
LordOfPorts earned 500 total points
ID: 24768614
...here is also an example based on the code referenced in the first post:
void YourCHtmlViewDerivedClass::OnNavigateComplete2(LPCTSTR strURL)
{
	CComPtr<IDispatch> spDisp = CHtmlView::GetHtmlDocument();
	IHTMLDocument2 * pHTML = NULL;
	IHTMLElementCollection * pElement = NULL;
	VARIANT vtName, vtIndex;
	BSTR bstrVal;
	CString sInnerHTML;
 
	spDisp->QueryInterface(IID_IHTMLDocument2, (LPVOID *) &pHTML);
	
	pHTML->get_all(&pElement);
 
	LONG nItems = 0;
        pElement->get_length(&nItems);
 
	for(int i = 0; i < nItems; i++) {
		vtName.vt = VT_I4;
		vtName.lVal = i;
		vtIndex.lVal = 1;
		vtIndex.vt = VT_I4;
 
		CComPtr<IDispatch> spDispTemp;
		pElement->item(vtName, vtIndex, &spDispTemp);
 
		IHTMLElement * pItem = NULL;
 
		spDispTemp->QueryInterface(IID_IHTMLElement, (LPVOID*)&pItem);
 
		if(pItem == NULL) {
			AfxMessageBox(_T("pItem is NULL"));
			return;
		}
 
		pItem->get_innerHTML(&bstrVal);
 
		sInnerHTML = bstrVal;
 
		AfxMessageBox(sInnerHTML);
	}
}

Open in new window

0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
fizzArray  challenge 1 83
MaxSpan challenge 9 96
Please explain "Promise Pattern" and how it's used 2 56
Message not shown 5 50
Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
Introduction: Database storage, where is the exe actually on the disc? Playing a game selected randomly (how to generate random numbers).  Error trapping with try..catch to help the code run even if something goes wrong. Continuing from the seve…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question