menu sensitivity setup hook

[Steve Splonskowski <splons mac com>]

Hello,

I have been searching around to find the appropriate way (hook) to  
know when to setup the sensitivity of the menu and toolbar (action)  
items in my GTK app.

All other UI frameworks that I have ever worked with had a well  
defined way to get notified that the menu items needed their enabled/ 
disabled state setup. But I have not found this place in GTK.

Any ideas?

thanks,
steve