How to track global focus?
How to track global focus?
- Subject: How to track global focus?
- From: David Niemeijer <email@hidden>
- Date: Mon, 29 May 2006 15:35:03 +0200
I need to track the focused UIElement. Within an application I can
get notifications of when the focused UIElement changes, but there
seems to be no way to get a notification system wide, thus when the
focused UIElement changes either within the front app or from app A
to app B or to the Dock, etc.
Is there indeed no way to install one notification callback that
catches focus changes system wide?
If there is none I will file a bug as it is not only inconvenient,
but also causes problems with applications such as the Dock and
SystemUIServer, which need to be special cased to obtain the PID and
track focus changes toward those elements. I can special case these
because I know they exist, but cannot special case similar situations
for applications that do not exist yet but that Apple may add in
Version Y or Z of Mac OS X. In other words, there should be a way to
not have to special case for focus tracking.
Thanks,
david.
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