>That is not one of the books I have, but I can get the source code for the book. Do you what chapter that was in by any chance?

Chapter 3, pgs 99-102. BTW, the books was very difficult reading for me. The graphic layout will give you eyestrain in a very short time (sample code is in light characters on a medium gray background!) and many of the examples are more complex than I would have preferred as a beginner. Otherwise, it does cover the subject.