I mentioned Hilo when it was first released. This is a cool project doing Windows 7 development in native C++ with no frameworks - not MFC, for example - so you can really see just how it is done. It's not just code, it's also a walkthrough of their design thoughts, and explanation of that code.
The next application, Hilo Annotator, is ready. It features a ribbon, it uses the Windows Imaging Component, Direct2D, and so on. While you probably don't need an image annotator, you may find the code useful in your own applications. And remember, this is all native C++ code.
Your best place to start is the Visual C++ Team Blog entry about it. It's rich in links and has a nice screenshot too.