Re: Quartz flash screen updates
Re: Quartz flash screen updates
- Subject: Re: Quartz flash screen updates
- From: David Duncan <email@hidden>
- Date: Tue, 24 Apr 2007 17:35:36 -0700
On Apr 24, 2007, at 5:02 PM, Steve Israelson wrote:
When this is turned on in Quartz, I see yellow flashes where the
screen updates.
Is there a way in my application to get at this information, ie the
area of the screen that was changed?
I must assume apps like Snapz Pro and VNC get this kind of info
from somewhere.
Take a look inside CGRemoteOperation.h. The first few APIs allow you
to access that information depending on what you want.
Just don't try to update the screen from the callbacks. It won't
break per se, but infinite loops tend to be unproductive :).
--
David Duncan
Apple DTS Quartz and Printing
email@hidden
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