app/window deactivation handling

[Steve Splonskowski <splons mac com>]

Hello,

In an app we are working on we have some things that need to be done  
when the app (or window since we only have one main window) is  
deactivated. That is when the use switches to another application we  
want to get control to clean somethings up before being deactivated.

Any pointers on where to hook into this?


thanks,
steve