My uneducated guess is one is the interface(virtual) and the other the
implementation (concrete)
therefore in your code you *could* dim as either and it will appear to work
the same
(assuming the implementation doesn't contain additional methods not found in
the interface)
in practice i think it's customary to Dim as AcadLayer
etc
hth
mark
"Adesu" wrote in message
news:5983549@discussion.autodesk.com...
Any others comment?
wrote in message news:5981296@discussion.autodesk.com...
good question
same with acadline and acdbline etc
