[gtkada] focus-in events for a group of widgets

[Manuel Op de Coul]

>On second thought, this won't work. I need to know which record had
>the focus, _after_ the user clicks the button that does something with
>that record. At that point, the button has the focus.

Then add one event handler for focus-in and connect it to all the
entries. Inside, copy the Object parameter to a global variable and
you'll know which entry had focus last.

Manuel