Mac OS X: Best way to do runtime check for retina display?

Posted by Todd Ditchendorf on Stack Overflow See other posts from Stack Overflow or by Todd Ditchendorf
Published on 2012-06-16T21:11:23Z Indexed on 2012/06/16 21:16 UTC
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Filed under:

objective-c

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osx

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cocoa

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osx-lion

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retinadisplay

Given a Cocoa application which runs on Mac OS X 10.7 and later:

What is the best way to check, at runtime, if your app is currently running on a Mac with at least one retina display attached?

If checking for this sort of thing is just really wrong-headed, I fully welcome a well-reasoned explanation of why.

But I'd still like to know :).

It seems likely you could just do a check specifically for the new Mac Book Pro "Retina" hardware (the only Mac at this time which currently has a retina display), but ideally, I'd really prefer a more general/generic/future-proof way to check than this.

Ideally, I'd like to know how to detect the retina display, not the specific Mac model which currently happens to ship with a retina display.

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