First post, hello everyone!
In my day job, we're getting drawings that have been drawn using apps like AutoPlant, where things like pipes are objects that don't display properly without an object enabler. We need to store the drawings in lowest-common-denominator plain AutoCAD 2000 format, because the drawings need to be distributable to lots of different companies.
Therefore, I need to check for drawings containing object-enabler-dependent objects using an automated process (I'll actually be adding to a rather complex existing drawing-checking routine in written in LISP). The check will need to work both in plain AutoCAD or any variant (e.g. the verticals), and in AutoCAD or any variant, both with and without the object enablers being present. The routine will need to work in at least AutoCAD 2002 to 2009 inclusive.
Has anyone else been there and done that? What's the best way of detecting such dependencies?