All of the code has been rewritten in this edition to take advantage of features introduced in Visual Basic 4. The most important change is the addition of classes. Classes make a lot of algorithms much easier to understand and implement.
Chapter 13 covers new object-oriented paradigms that are difficult to implement in VB3.
The book's CD-ROM does include all of the code from the first edition, however, so you can use many of the algorithms even if you are still using Visual Basic 3.
| 
