Visual Studio 2010 extension smart tag functions

Where can I find an example of a Visual Studio 2010 extension that lets you put a smart tag on functions in a source code?

For example, if the cursor "stands" on a function name (and a function only), the user will be able to select my actions from the drop down 开发者_开发知识库menu (in addition to the existing operations).

Not sure if its any use to you at this late stage, but I used the MEF example Walkthrough: Displaying SmartTags on MSDN to guide me on creating a custom tag for my own functionality.

I've been looking for the same thing. The closest thing I've found so far is a helper in a Visual Studio extension library called DXCore (DXCore is a library in CodeRush: http://www.skorkin.com/2011/05/dxcore-components-smarttagprovider/ )

You have to pay for coderush, but DXCore is a free library. I found this thread on how to get it: http://community.devexpress.com/forums/p/76328/261446.aspx (you install the trial edition of CodeRush, and that includes the free dxcore library).