From: Enrico Schwass <deckard73@...>
Date: 2005-06-13T04:06:24+09:00
Subject: Rubytk - How to use <<ListboxSelect>>

Hello

In the tk reference manual i found an event called ListboxSelect.
I would like to use this to change a buttons state from :normal to  
:disabled or vice versa.
Say a listbox is empty. Now, edit an entry is not possible so the button  
should disabled.
After a few seconds the listbox get filled, the edit button should now set  
to normal state.

Could you post a code snippet to demonstrate this callback functionality

Thanks
Enno