[Paraview] Paraview and VTK: how to use both

[Hareesh TK]

Hi all

While anlysing the paraview code (1.8 Beta version) I came to know
that they are inserting class name along with some command functions
into vector NewInstanceFunctions
  and mapper ClassToFunctionMap. 

But I donot able to trace out that where they are using these
functions in future,
Can any one help me out 
Thanks in advance

bye
Hareesh