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How to read the HTML source with CViewHtml or URL with MFC?

Mobinex
Mobinex asked
on
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Last Modified: 2013-11-20
Hi Experts,

I have developed a class that driver the CViewHtml to browser HTML from a URL,
Now, I want to get all the contents of html page to save to the local html file, how can I do this?
How we reat the html contents from a URL? or read the contents from CViewHtml control?

Thank in advance!
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IT Professional
Top Expert 2005
Commented:
You can use GetHtmlDocument() and then manipulate the document directly save it, change it, etc.

You may use code similar to following :

e.g.

// Note:  CMyHtmlView is derived from CHtmlView

CString CMyHtmlView::GetHtmlText()
{
 CString Text;
 HRESULT hr;
 IHTMLDocument2 *pDoc = NULL;

 // Load the current document into pDoc
 hr = this->GetHtmlDocument()->QueryInterface(IID_IHTMLDocument2, (void **) &pDoc);

 if (hr == S_OK)
 {
  BSTR pelementText = NULL;
  IHTMLElement *Element = NULL;

  // Get the body
  pDoc->get_body(&Element);

  Element->get_innerHTML(&pelementText);
  Text = pelementText;

 } // End HTMLdocument is valid (HR == OK)

 return Text;
}

Hope this helps
-MAHESH

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Author

Commented:
Many thank for this,
I have question next. How to get images infomation to download to client? Can we cache all images and text with CViewHtml to app folder(my ower folder)?

Thank in advance!
mahesh1402IT Professional
Top Expert 2005

Commented:
For images you may use IHTMLDocument2::get_images() and IHTMLImgElement

Have a Look here : http://www.experts-exchange.com/Programming/Programming_Languages/MFC/Q_20294289.html

-MAHESH
mahesh1402IT Professional
Top Expert 2005

Commented:
Alternatively you may use UrlDownloadToFile() API function to download elements, images, entire webpage to disk.
http://msdn.microsoft.com/workshop/networking/moniker/reference/functions/urldownloadtofile.asp

-MAHESH
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