Lesson 2: Using Visual LISP Debugging Tools (Visual LISP IDE)

Attention: This lesson requires the Visual LISP Editor and applies to Windows only.

This lesson teaches you how to use several valuable Visual LISP® debugging tools that speed up the development of AutoLISP® programs. You will also learn the difference between local and global variables, and when to use them. Your program will become more active—prompting users to enter some information. The information will be stored in a list and you'll begin to understand the power of using lists within your AutoLISP programs. After all, LISP got its name because it is a LISt Processing language.

Topics in this Tutorial

  1. Differentiating Between Local and Global Variables
  2. Using Local Variables in the Program
  3. Examining the Gp:getPointInput Function
  4. Using Association Lists to Bundle Data
  5. Putting Association Lists to Use (AutoLISP)
  6. Storing the Return Value of Gp:getPointInput in a Variable
  7. Examining Program Variables
  8. Revising the Program Code
  9. Commenting Program Code
  10. Setting a Breakpoint and Using More Watches
  11. Using the Debug Toolbar
  12. Stepping Through Code
  13. Watching Variables As You Step Through a Program (AutoLISP)
  14. Stepping Out of the Gp:getPointInput Function and Into C:Gpmain
  15. Wrapping Up Lesson 2

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