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Re: Drawing on Another App's CGDisplayCapture

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Re: Drawing on Another App's CGDisplayCapture

Subject: Re: Drawing on Another App's CGDisplayCapture
From: David Duncan <email@hidden>
Date: Thu, 22 Mar 2007 13:59:00 -0700

On Mar 22, 2007, at 9:15 AM, Ben H Kram wrote:

I am assuming that Keynote uses CGDisplayCapture() to grab the display. If I try to do the same when Keynote is in presentation mode, I get a kCGErrorNoneAvailable, which I would expect.

There is a preference in Keynote ("Allow Expose, Dashboard and other Apps to use the screen" or something to that effect) that controls if Keynote captures the display or not. If you turn this preference off, then you can open a window above Keynote's display. -- David Duncan Apple DTS Quartz and Printing email@hidden


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