Expert: Bill DeShawn - 2/28/2011

Question
I have 4 year expirence in autocad2D and now I am a student of MCA. Now I want to know how to create and load any lisp in Autocad.Please answer me.

Answer
Hema:  Lisp is a programming language and is best learned in a classroom setting.  However there is literature out there than can help.  A book called AutoLISP Programming Principles and Techniques by Rod Rawls & Mark Hagen is very helpful to start with.  After you get that down to where you're comfortable with it. there are other books for more advanced ActiveX functions which were implemented when Visual LISP was implemented by Autodesk.  Autodesk also has support groups for customization that help users with questions about LISP syntax and other customization questions.  That can be found here:
http://forums.autodesk.com/t5/Visual-LISP-AutoLISP-and-General/bd-p/130

 
AutoCAD provides three ways to load LISP files.  

1.  APPLOAD will load any application including LISP.  You can put some routines in the Startup Suite if you want them to automatically be loaded when you start AutoCAD.

2.  You can load a lisp routine with the lisp command (load .  If, example you want to load a lisp file called HEMA.LSP, then with the lisp file in the Support File Search Path, enter (load "hema") in order to load the routine.  

3.  If your AutoCAD installation supports this, there is often a LISP routine supplied and loaded to assist you in loading a LISP file.  To start the routine, type LSP at the command line. Next you will see the following on the command line:
Enter an option [?/Commands/Functions/Variables/Load]:
Now you can type L to load a routine.  That will take you back to #1 and will put you into the APPLOAD dialog.

Let me know if you have more questions.

Bill DeShawn
http://my.sterling.net/~bdeshawn