How get NEW value for "value_changed" event? (from GtkAdjustment object?)

[Chris Seberino <seberino spawar navy mil>]

"value_changed" events are when someone changes
value with a slider bar. (I think.)

This calls a signal handler that gets the GtkAdjustment
object as a parameter.  How/where can I pull out the value
that slider bar value was changed to.  I need to do 
something with the NEW value!

Thanks,

Chris
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