Martin McClure wrote:
> A good introduction to adding primitives and Slang (the Smalltalk 
> subset that is translated to C) can be found in Mark Guzdial and 
> Kimberly Rose's book, "Squeak: Open Personal Computing and 
> Multimedia," which tends to be known around here as the "NuBlue 
> Book." I'd recommend this book as one starting place for what you 
> want to do.
> 
> Don't get the NuBlue Book confused with the White Book, Mark 
> Guzdial's :Squeak: Object-Oriented Design with Multimedia 
> Applications." The latter contains a lot of good stuff, but not the 
> low-level interfacing stuff.

Excellent. I ordered both books today. Thanks for the recommendation.

Dave Hylands