Re: Implementing Full Screen for 10.7 but app should also run on 10.6
Re: Implementing Full Screen for 10.7 but app should also run on 10.6
- Subject: Re: Implementing Full Screen for 10.7 but app should also run on 10.6
- From: Quincey Morris <email@hidden>
- Date: Mon, 14 Nov 2011 10:20:49 -0800
On Nov 14, 2011, at 07:15 , Koen van der Drift wrote:
> I'd like my application to use the full screen feature on 10.7, but
> the app should also run on 10.6 I tried adding
> NSWindowCollectionBehaviorFullScreenPrimary for my main window, but
> got an error since I am building agains 10.6 SDK.
>
> How do I make this work (if possible)?
Don't follow the advice to define NSWindowCollectionBehaviorFullScreenPrimary yourself. It's really, really dangerous to replicate a fragment of one SDK in a build against an earlier SDK. What if the value changes in a later 10.7.x SDK, or if the value is invalidated in some way you can't foresee?
There's only one safe way to use features from a later SDK: use the later SDK as your base SDK, and set your deployment target to the earlier system version, adding run-time checks to ensure that you don't use the later SDK's features on an earlier system.
Unfortunately -- this is a known deficiency -- when you do that, you lose the ability to detect (at compile time) features of the later SDK that are used without the correct run-time checks.
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