Has anyone had experience with passing object references to a function in an fll? I have been successful in passing an object reference in and returning it to another variable. There is much I do not understand.

ev_object is the same for every object that is passed durring a VFP session, I had assumed that it would be unique for each object. For what is it good?

From http://msdn.microsoft.com/LIBRARY/DEVPRODS/VS6/VFOXPRO/HTML/DGACCESSING_THE_VISUAL_FOXPRO_API.HTM:

"Note To return the value of an object data type, use the _RetVal() function, filling in the ev_object field in the Value structure."

Filling with what?