Community
Hi
It's not clear what you are talking about, there might be many ways to access the info, wether it is from a feature directly, or through the document parameters... You should take a look at some introductory material if you begin working with the API:
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=17324828
https://github.com/ADN-DevTech/Inventor-Training-Material
Philippe