How to sign your LISP files

This post follows on from Why digitally sign your LISP files? and How to obtain a digital signature to sign your LISP files. In the first post, I explained why you might want to digitally sign your LISP files. In the second, I explained how to obtain and install a digital signature. This third and final post in the series assumes you have done all that and now want to sign your files. There are two methods available to you, using a dialog box or command-line interface. Signing LISP using the AcSignApply.exe dialog box Autodesk has provided a utility called …

How to obtain a digital signature to sign your LISP files

In an earlier post, I explained why you might want to digitally sign your LISP files. If you decide to go ahead with that, then this post explains how you can obtain and install the digital signature you will need to sign your files. This is the most difficult part of the process and it involves spending money. Getting a digital signature Although you can make your own digital signature (there’s an Autodesk Knowledgebase article describing the process), there’s little point in doing this. You can sign your files, sure, but that signature won’t be seen as trusted by software …

Why digitally sign your LISP files?

After I mentioned in an earlier post that I had digitally signed the sample LISP file I had provided, this generated some interest. In this post, I’ll explain why you might want to sign your LISP files. In a later post, I’ll explain how to do it. These days it is standard practice for developers to digitally sign their code. Operating systems and applications are displaying increasingly scary warnings when coming across unsigned code. Here is an example of the sort of message you get when you load an unsigned LISP file into AutoCAD from a location that has not …

Setting your application or document window size using LISP

I intend to produce a few videos containing tips, tutorials, product comparisons and the like. I’ve set up a cad nauseam YouTube channel, but don’t bother visiting it yet because it’s empty. One of the things I need to do for these videos make sure I’m capturing the screen at an appropriate resolution. I knocked up a bit of Visual LISP to take care of this task quickly and accurately, and you might as well have it. It’s a simple routine that allows you to accurately size either the main AutoCAD application window or the current document window (drawing area) …

My first computer

My first computer was a Dragon 32, which I think I bought in 1982. With a massive 32 kilobytes of RAM and a proper typewriter keyboard, it was quite advanced for a home computer of the time. The Commodore 64 may have had more RAM, but a lot of it was grabbed by its very basic BASIC. I preferred a computer with an ELSE to go with its IF, thanks. Microsoft Extended BASIC for me, not the crummy old BASIC 2.0 of the Commodore. The Commodore 64 was one of the great consumer electronics sales successes of all time. The …