Re: How to draw on "Microsoft Web Browser" control?

20 Jul 2006 06:44:35 -0700
Thank you for your reply.

I am doing semantic analysis on the HTML DOM tree, so I am not sure
whether it is a good idea for me to insert elements into the tree.
Draw on existing elements doesn't change the structure of the html
tree, but it changes the content, doesn't it? I don't really understand
what you mean by "drawing on existing elements". Change its style using

I will try using CHtmlView or CHtmlCtrl in your link first and see the

Thanks again :)

Ajay Kalra wrote:

CWebBrowser2 is not the subclass you want. Take a look here about the
correct window to subclass:

Having said that, I am not sure if subclassing and drawing on it is the
correct way. I would go with inserting an element or draw on existing

Ajay wrote:

I have a "Microsoft Web Browser" in my program.
VC generated CWebBrowser2 as a wrapper class of ActiveX control
"Microsoft Web Broswer", which is a subclass of CWnd.
Now I get the position and size of a certain html element, say, an
image, and I want to draw a red rectangle to encompass it.
I tried to do that by the following code but it doesn't work.

    RECT rect = {100, 100, 100, 100};
    CDC * pdc = this->m_webBrowser.GetDC();

    CPen newPen;
    newPen.CreatePen(PS_SOLID, 3, RGB(25, 255, 25));

    CBrush newBrush;
    pdc->FillRect(&rect, &newBrush);


Does anyone know how I can do it?
Any help will be appreciated!

I know I can make the image element maked by changing its style using
MSHTML, but there are situations that are far more complicated to

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