Programming
Article
To AutoLISP or VBA?   1 Jan, 2001

What's the difference between AutoLISP and VBA?I want to learn how to program AutoCAD, but I'm not sure which tool to learnfirst. Which one is better?More>>

Article
Attaching Data to AutoCAD Entity Objects   1 Nov, 2000

Do you know what differentiates AutoCAD from a drawing program of lesser value? The quick answer is AutoCAD has programming interfaces.More>>

Article
Programming Reactors   1 Sep, 2000

Reactors are functions (program modules) that run in reaction to something going on within the system.More>>

Article
Visual LISP System Utilities   1 May, 2000

Let's explore some of the features in Visual LISP that relate to the operating system and develop a utility for our toolbox that has been frequently requested by readers.More>>

Article
Working with Extended Data in VBA and AutoLISP   1 Jan, 2000

Have you ever wanted to attach additional information to existing AutoCAD entity objects? Perhaps material properties, loading limits or construction details? If so, then you should consider the use of extended data.More>>

Article
Associating Lists and Dialog Box List Boxes   1 Nov, 1999

One of the more frequently asked questions by AutoLISP programmers who are learning about dialog boxes is how to associate a dialog list box with an AutoLISP data list.More>>

Article
Reactors-Making Aware Programs   1 Sep, 1999

To make an application aware of program events, use the tools in Visual LISP called reactors.More>>

Article
Lightweight Polylines   1 Jul, 1999

AutoCAD R14 introduced a new object named a lightweight polyline that replaces the complex polyline object.More>>

Article
Dialog Box Programming Concepts   1 May, 1999

Dialog-box interfaces can make a world of difference in how well the user community accepts an application.More>>

Article
Establishing a Dialog   1 Mar, 1999

Dialog boxes are not difficult, but they are different and do require a basic understanding of how they work.More>>