On Sep 11, 2010, at 10:57 PM, Trygve Inda wrote:

>> On Sep 11, 2010, at 10:52 AM, Trygve Inda wrote:
>> 
>>> Is there a way to be notified when the graphic card is switched?
>> 
>> NSApplicationDidChangeScreenParametersNotification
> 
> When it is running on the slow card, the CGDirectDisplayID will be x, and on
> the fast card it will be y. Is there anyway to derive x from y or y from x?
> 
> I am trying to be able to uniquely identify screens even before/after a
> processor switch.

Perhaps the index in the display list (either of +[NSScreen screens] or 
CGGetActiveDisplayList())?  Alternatively, based on position?

Regards,
Ken

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