GTK_SHRINK in GtkTable

[mcrichto cord iupui edu]

Well, I'm finally breaking down and asking for help on this one.  After
pouring through the docs and src, and playing with some test programs, I
cannot figure out what the GTK_SHRINK attribute does to a widget being
attached to a table.

Can anyone give me some insight on this, amd maybe even a rough sample?

Thanks,
Mark Crichton