Re: Disabling Exposé in SystemUIMode
Re: Disabling Exposé in SystemUIMode
- Subject: Re: Disabling Exposé in SystemUIMode
- From: Eric Schlegel <email@hidden>
- Date: Fri, 07 Aug 2009 09:12:57 -0700
On Aug 7, 2009, at 9:09 AM, Pierce Freeman wrote:
Yes, that's the problem. The hardware keys aren't blocked either.
In any event, I've submitted a bug report about the issue and
hopefully it
will be resolved in Snow Leopard. I'm not betting on it, but it may
just
make it through.
It won't be, sorry.
If you absolutely must disable Expose, CGDisplayCapture is the way to
go. The caution about NSAlert is correct, though - CGDisplayCapture
is
designed to give you one window in which to draw all of your content,
and the window server does not guarantee that other windows could be
displayed while the display is captured.
So, assuming that I need/want alerts, but can't have Exposé enabled
- what
are my other options?
I don't have any good recommendations. It might be possible to
intercept and suppress the physical Exposé key on the keyboard using
some IOKit callbacks; I haven't tried this. Hot corner and four-finger-
swipe activations of Exposé can be disabled in System Prefs, so you
could instruct your users to disable those before running your
application.
-eric
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