Programming
Article
Is LISP Out of a Job? No Way!   1 Jul, 2002

There are a lot of tools for customizing AutoCAD, so programmers often want to know which tool is the best for the job and which to learn at the exclusion of all others.More>>

Article
Draw 3D Screw Threads   1 Jun, 2002

HELIX.LSP creates wire frame helical screw threads for 3D drawings.More>>

Article
Object Manipulation in Visual LISP   1 May, 2002

Although the computer is much faster at solving rigorous mathematics than we are, it lacks the conceptual talent to understand what it sees.More>>

Article
Programming for the Future--Surviving Upgrades   1 Mar, 2002

Will our custom programs run okay after we upgrade AutoCAD? What types of difficulties or hurdles will be encountered?More>>

Article
Toolbar templates   1 Mar, 2002

Add custom toolbars to your AutoLISP program interfaces.More>>

Article
Using Selection Filters   1 Jan, 2002

An important aspect of most AutoCAD-based programming projects is the building of one or more selection sets.More>>

Article
The Visual LISP Integrated Development Environment   1 Nov, 2001

Before Visual LISP and the IDE (Integrated Development Environment), AutoLISP developers were forced to use text editors or word processors that know nothing about LISP syntax and requirements.More>>

Article
Error Catching in Visual LISP and VBA   1 Sep, 2001

Programming applications will often involve the detection of and recovery from errors caused by a variety of sources.More>>

Article
Using Visual LISP to Improve VBA   1 Jul, 2001

This month we're going to take a look at some Visual LISP functions that will assist VBA programmers.More>>

Article
Entity Level Reactors in VBA   1 Mar, 2001

Reactors are functions we write that run in response to something happening in the computer system.More>>