DVD Player is a special case—Apple is legally bound to prevent other
apps from viewing the decrypted contents of the DVD. Recall that
theoretically, DVDs are an encrypted/copy-protected medium. They jump
through various hoops to make sure that other apps can't see the
decrypted/decoded pixels, and forcing the window onto a single screen is
likely to be a part of that process. (They probably coordinate with the
video driver to keep the pixels private.)
I am pretty sure that if another process tries to read those pixels,
they just get a solid color.
Daniel Kennett wrote:
Try and make DVD Player span multiple screens - it simply won't. Since
DVD Player is hardware accelerated, I was going to suggest that
hardware accelerating across multiple screens is hard (especially when
said screens are connected to different cards), but World of Warcraft
manages just fine, so who knows?
(I've only just realised I'm quoting a Blizzard guy!)
-- Daniel
On 7 Mar 2008, at 16:38, John Stiles wrote:
I'm going to jump on the bandwagon and say that your client is wrong.
Mac apps do not and should not do this.
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