How can I handle WebBrowser control events with C++?

[S***@gmail.com]

I wrappered the WebBrowser control to a Static Lib using C++ and ATL
window:
LIF(AtlAxWinInit());

// Create container window
WinContainer.Create(m_hParentWnd, &rc, L"shell.explorer", WS_CHILD |
WS_VISIBLE);
CComPtr<IUnknown> punkCtrl;
JIF(WinContainer.QueryControl(__uuidof(IWebBrowser2),
(void**)&punkCtrl))

CComPtr<IWebBrowser2> spWebBrowser = punkCtrl;
// omitted ......

The control can be created correctly, but I do not know how to handle
the user events. Anybody helps?

[Igor Tandetnik]

Post by S***@gmail.com
I wrappered the WebBrowser control to a Static Lib using C++ and ATL
The control can be created correctly, but I do not know how to handle
the user events. Anybody helps?

See IDispEventImpl and AtlEventHandling sample.

[Pomelo]

Greate Thanks! However, it is not an ATL project. The solution must be
a common Win32 Static Library, so I've no idea how to sink those COM
events.

[Igor Tandetnik]

Post by Pomelo
Greate Thanks! However, it is not an ATL project.

I distinctly remember seeing AtlAxWinInit, CComPtr and other ATL
features in your original post. Let me check ... yep, here they are.

Post by Pomelo
The solution must be
a common Win32 Static Library, so I've no idea how to sink those COM
events.

You need to implement IDispatch interface, and advise it to the control
via its IConnectionPointContainer and IConnectionPoint interfaces.

[Pomelo]

Post by Igor Tandetnik
I distinctly remember seeing AtlAxWinInit, CComPtr and other ATL
features in your original post. Let me check ... yep, here they are.

Yeah, they are.. :p

Post by Igor Tandetnik
You need to implement IDispatch interface, and advise it to the control
via its IConnectionPointContainer and IConnectionPoint interfaces.

I got it. BTW, do you have some sample code or, any guidance? Thx a lot.

[Pomelo]

I did it. thanks.

Now I want to implement interfaces IDocHostUIHandler and IDocHostShowUI
and pass them to the webbrowser control. I studied the article
'WebBrowser Customization' in MSDN, but not well understood. So I turn
to you for help, wishing it not disturbs.
Thanks in advance.

[Igor Tandetnik]

Post by Pomelo
Now I want to implement interfaces IDocHostUIHandler and
IDocHostShowUI and pass them to the webbrowser control. I studied the
article 'WebBrowser Customization' in MSDN, but not well understood.

You implement these two interfaces on the client site object - the same
object you implement IOleClientSite on.

Do you or don't you use ATL after all?

[Pomelo]

ehhh... I guess I did not make it clear.
I set up a Static Library solution, not an ATL one. To hold the
Webbrowser control, I used some of the ATL classes, such as AxWindow.
And, I did not implement the interfaces other than IDispatch.

[Igor Tandetnik]

Post by Pomelo
ehhh... I guess I did not make it clear.
I set up a Static Library solution, not an ATL one. To hold the
Webbrowser control, I used some of the ATL classes, such as AxWindow.
And, I did not implement the interfaces other than IDispatch.

So you are using ATL hosting support. IDocHostUIHandler is easy - you
implement IDocHostUIHandlerDispatch (it's fundamentally the same
interface - why ATL authors decided to create a new interface is beyond
me) and set it with CAxWindow::SetExternalUIHandler.

Implementing IDocHostShowUI is difficult with ATL hosting. For some
options, see

http://groups.google.com/group/microsoft.public.vc.atl/browse_frm/thread/b4f078d6bc7a5c0b/9c0ec49d83637b5b

[Pomelo]

Yeah, that works! I'll try to implement IDocHostShowUI. Great Thanks!

[Pomelo]

Well... one more question: how can I capture mouse events that occur on
the browser (Mouse Down)? I looked for help in MSDN, but did not find
any interface that helps...

[Igor Tandetnik]

Post by Pomelo
Well... one more question: how can I capture mouse events that occur
on the browser (Mouse Down)? I looked for help in MSDN, but did not
find any interface that helps...

You can sink onmousedown event off the document object. See
HTMLDocumentEvents[2]