[vtkusers] getting classes/version of compiled vtk-libraries

[Jens]

Hi
Does anybody knows how a program can find out on runtime what classes are part 
of the compiled vtk-librarys on the system?
I would like to make vtk accessable through a scripting engine and have to 
avoid any segfaults when calling functions/classes, which are not part of the 
vtk-libs on that system.

I suppose vtk is binary-compatible with all Vtk´s with the same 
major-version-number (checked through vtkVersion-class). But I still do not 
know how to find out, which classes are part of a compiled vtk-library. 
Depending on cmake-settings vtk-libraries differ.

Any ideas? 
	Jens Henrik