Harry's Code Class
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Working with AutoCAD Selection Sets (Harry's Code Class Newsletter)   25 Nov, 2008

When building a Visual LISP or VBA routine, understand the unique rules that control these objects.More>>

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VBA, Visual LISP Answers to the Same Question (Harry's Code Class Newsletter)   27 Oct, 2008

User's request for global text clean-up routine leads to dual solution that serves as a great instructional example, as well.More>>

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Integrating AutoCAD with Other Applications (Harry's Code Class Newsletter)   23 Sep, 2008

Custom programming lets your systems share data -- and ramps up your productivity.More>>

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Should You Learn to Program AutoCAD? Yes! (Harry's Code Class Newsletter)   26 Aug, 2008

AutoCAD users can dip their toes in customization or dive in head-first. Time and effort required may vary, but every approach pays off.More>>

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Keep Your Code Collection in Perfect Harmony (Harry's Code Class Newsletter)   22 Jul, 2008

Harry offers a few tips for using free Web downloads, and gives a sneak peak of Cadalyst's new CAD Tips site.More>>

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From Idea to Code (Harry's Code Class Newsletter)   24 Jun, 2008

Every computer program is unique, but the steps of every programming process are fundamentally the same.More>>

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To Err Is Human (So Program Accordingly), Part 2 (Harry's Code Class Newsletter)   27 May, 2008

Harry gets specific about how to include error catching in AutoLISP and VBA programs.More>>

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To Err Is Human (So Program Accordingly) (Harry's Code Class Newsletter)   22 Apr, 2008

In Part 1 of a series, Harry offers some basic advice about error handling for Visual LISP and VBA programming.More>>

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Messing with Layer Names (Harry's Code Class Newsletter)   25 Mar, 2008

Today's lesson demonstrates how to create an object-oriented Visual LISP routine that processes multiple AutoCAD drawings.More>>

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All Sorts of Possibilitiles (Harry's Code Class Newsletter)   26 Feb, 2008

Visual LISP offers built-in and definable options for automatically arranging data in ascending, descending, or alphabetical order.More>>