Quote Originally Posted by Tommy
The sset is a selection set which has to be there for the export option to work. It is ignored (according to help) and I don't understand why it is neccessary unless internally they fill it and export it.
Oh ok I know what you mean!

Quote Originally Posted by Tommy
LOL C++ is arx in acad. It is actually an external program loaded into acad memory space. You'll need a SDK for that. Have you tried Lisp? Have you learned how to customize the menus?
I have not tried Lisp other than some examples and as far as menues, I just use the icons unless I have to use a menue option so no, I have not done any customizations to them.

I have heard about arx but not sure what it is and I don't know what SDK is.......