C#/C++ Example to Extract/Modify Drawing Dimension?

I am evaluating Solidworks PDM to see if the API has the functionality that I am looking for.  Does anybody have an example of C# or C++ code (something besides VB) that leverages the API to extract drawing dimensions and/or modify them?

Is the API included in the Trial Version of SolidWorks?  If not, how can I be sure that this functionality exists?  

SolidworksApi/macros