There are four technical notes available for Developers:
Using Dialogs with Claris Resolve (last modified 9/25/91)
Apple Events in Claris Resolve (last modified 9/13/91)
How to Write a Resolve External Function (last modified 3/9/92)
Differences between ResolveScript and HyperScript (last modified 9/25/91)
These Tech Notes are available from Claris Technical Support or Claris Customer Relations.