Re: Callback error

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Thanks for all the suggestions.  Unfortunately, none of them seemed to work
(at least, I couldn't make it happen.)  Fortunately, I sidestepped the issue
by passing a pointer and letting the C routines store the data I needed
passed there.  This seems to work fine.

I'd be interested to know if anyone else (esp Gary Dumer with VEL, even
though its not written in C) has had a similar problem?

BTW, the project I'm working on is using CLIPS, which is a C based expert
system development language, created by NASA.  I recall Ralf talking about
interest in Lisp or Prolog or something with regard to creating an inference
engine in Euphria.  That's exactly what CLIPS is about.  There are several
sites on the web from which to download versions of CLIPS, including the
source (it's all PD).  The CLIPS homepage is at:

http://www.ghgcorp.com/clips/CLIPS.html

if anyone's interested...

Matthew W Lewis

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