How can i create an Vista like expansion button with MFC?

I mean the round expansion button that is used for example in the Task Dialog on Vista.

See this image from t开发者_开发技巧he MFC documentation of CTaskDialog.

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1. Ensure your application is Unicode.
2. Ensure you are using VS2005 or higher that can embed resource manifest by themselves, OR do it manually.

Just do this:

• Create an MFC Dialog based application using VS2008 - Use all default settings.