[Paraview] Triggering Update for Custom Panel Plugin

[Mike Jackson]

I am writing a custom GUI for my filters. Part of the GUI are buttons  
that allow the user to select a color for certain parts of their  
data. I generally have things working but when the user selects a  
different color the "Apply" button remains disabled. Is there a  
method call that can be made that would tell ParaView to re-enable  
the "Apply" button? I have some other UI elements in the GUI which  
are auto hooked up to SM XML and changing any of those values will  
trigger the "Apply" button in the proper way.

Thanks for any help.
--
Mike Jackson
imikejackson & gmail * com