I'm working in the dark here Jeff, guessing games ...
Can you ask the powers that be ?
Heh, me too!
I thought I was asking those in the know by posting to the C3D.customization newsgroup. 3-4 of the programmers actually do monitor that place. I'm just a bit impatient, I guess, since it was one of them that sternly suggested I take the .NET route.
Jeff, can you get the different types from the object browser .. ?
Yes, there are a bazillion of them.....and FeatureLine is not among them. This is one area that they neglected to expose to us outsiders which is why I wrote the lisp in the first place. But since these aren't exposed, I'm guessing they cannot be cast as this specific type?.?!?
Kerry, you said I'd need to know the type even if I used a filtered selection set. Are the C# SS filters not DXF based as all others I've used are? The lisp filter is just '(0 . "AECC_FEATURE_LINE")
Thanks again to all who are helping me to step off the edge.