WebBrowser Control from MFC — How to Inject Javascript?

This is like the question How to inject Javascript in WebBrowser control?

But i don't know how to transform 开发者_如何转开发this code into good old MFC C++ code. For example what is the InvokeScript method, i can't find it anywhere.

Isn't .NET webbrowser the same as IWebBrowser2 ?

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You can find a CodeGuru article describing how to accomplish this here.