Toolbar Button Handling

I've added a button to the toolbars. I've implemented it as a COM object. It works.

(enough showing off)

I'm able to get IShellBrowser and IShellView Interfaces - but they don't really help.

ref: http://msdn.microsoft.com/library/default.asp url=/workshop/browser/ext/tutorials/button.asp

If your COM object needs to access the Dynamic HTML (DHTML) Object Model of the page that Internet Explorer is currently displaying, you must implement IObjectWithSite.

I want to access the html source and the url being displayed. Where can I access this info

Internet Explorer Development6

Check out http://msdn.microsoft.com/library/default.asp url=/library/en-us/dnwebgen/html/bho.asp

It shows how to get the html source of a page being currently viewed in IE using a BHO

In answer to my original question, I need to get the IServiceProvider interface of the instance

IServiceProvider* pIServiceProvider = NULL;
hr = this->m_spUnkSite->QueryInterface<IServiceProvider>(&pIServiceProvider);
if ( hr==S_OK && pIServiceProvider!=NULL )
{
   IWebBrowser2* pIWebBrowser2 = NULL;
   pIServiceProvider->QueryService(IID_IWebBrowserApp, IID_IWebBrowser2, (void**)&pIWebBrowser2);
    ...

Unfortunately, apparently the 'tutorial' I linked to is not applicable to IE7\Vista.

Do you know whether you link re BHOs applies to IE7\Vista

I'm not sure what you mean when you say it was "not applicable" I use the approach in your post to grab the HTML for my plugins; this hasn't changed since IE6. Where does the code fail for you

Below is a SetSite example that works fine on my RC1 build of Vista.

HRESULT CHelloWorld::SetSite(IUnknown* pUnkSite)
{

if (pUnkSite != NULL)
{

CComPtr<IServiceProvider> spIServiceProvider;
HRESULT hr = pUnkSite->QueryInterface(IID_IServiceProvider, (void **)&spIServiceProvider);
if (SUCCEEDED(hr) && spIServiceProvider)
{

hr = spIServiceProvider->QueryService(IID_IWebBrowserApp, IID_IWebBrowser2, (void **) &m_spWebBrowser);
return hr;

}

}

}