Determines whether TypeLib information is present for the specified type of object
Visual LISP requires TypeLib information to determine whether a method or property is available for an object. Some objects may not have TypeLib information (for example, AcadDocument).
(vlax-typeinfo-available-p obj)
Arguments
A VLA-object.
Return Values
T, if TypeLib information is available; otherwise nil.
The vlax-import-type-library function.
