Hi Jay,
Check out
http://www.graphisoft.com/support/developer/documentation/LibraryDevKit/
Under Technical Standards/4.Script type specific issues you can find what you are looking for.
You can download the full Library developer documentation here:
http://www.graphisoft.com/support/developer/downloads/
Regards,
Greg
Gergely Kmethy
VP, Customer Success, Graphisoft