RadioButton Groups

[Nik Ogura <nogura uma-mn com>]

I have a group of RadioButtons, and I want the program to do something
useful with them when they are pressed, changed, etc. 

How do I :

a) set a signal_connect for the group to respond to something being
toggled/changed (or do I have to set it individually for each button?)

b) get which button is active in the group so that I can do something
useful with the value.

Thanks again 
-- 


-Nik