I am setting up my clent's laptop, which he claims "automatically" upgraded itself from Win7 to Win10. He thought his AutoCAD 2002 would not run, but it does. That's the good news.
The bad news is that programs that I wrote years ago, that have run flawlessly in Win2K, XP, and Win7 are now experiencing elockviolations ("LWPOLYLINE creation failed ... error: C#0000005 ...") or something like that on his laptop.
I presume that there's something in my code that is causing it, but I have no idea where to look first. Are there typical situations that cause this error in AutoLisp? The only thing special is that it's wrapped in a VLX.
Wait. I just checked my code. The "LWPOLYLINE creation failed" message is built into my program to report an entmake failure. Might the entmake including a new layer be part of the problem? It never has before. Or is 2002 doomed to not work correctly in Win10.
The *error* function does contain (command "_.Undo" "_End"). I wonder if converting to some Visual Lisp would circumvent this issue.
