How to dim a button

[G Hasse <gh raditex se>]

Hello!

In my userinterface i have a lot of buttons. Some of them are
togglebuttons. When I select som of the togglebuttons I
want to "dimm" som of the buttons. Is there any prefered or simple
way to do this. As for now I change font and block the
events in the buttons callbacks. This is a cumbersom and
error prune way to do it though.

Göran Hasse