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.

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.