Is there some sample code for ribbon based interface similar to powerpoint as a simple authoring program that I want to practice writing code for ribbon based UIs. A simpler version of paint that ships with Windows 7 will also be very helpful?
MSDN has article about Ribbon (WPF) and in downloads section you will find
the assemblies and license files that are required to use the ribbon, and project templates and designer support for Visual Studio 2010 and Expression Blend 4