Re: MacOS X 10.4 and 10.5
Re: MacOS X 10.4 and 10.5
- Subject: Re: MacOS X 10.4 and 10.5
- From: Shawn Erickson <email@hidden>
- Date: Sat, 28 Feb 2009 10:30:32 -0800
On Sat, Feb 28, 2009 at 10:15 AM, xEsk PiV <email@hidden> wrote:
> Hello,
>
> I have some doubts with MacOS X 10.5 and 10.4:
>
> 1) If I compile my application with MacOS X SDK 10.5 and I run it
> under MacOS X SDK 10.4 (and I don't use any explicit 10.5 class) it
> will run without problems?
(small nit on terminology... you don't run under an SDK)
Yes* but only if you specify the (min) target OS as 10.4 and SDK as 10.5.
Review...
<http://developer.apple.com/documentation/DeveloperTools/Conceptual/cross_development/HowItWorks/chapter_2_section_3.html>
* Also test on both 10.5 and 10.4 because variations in how the
frameworks function can bite your.
> 2) If I use a specific 10.5 class (i.e: NSDockTile) is obvious it
> won't run under MacOS X 10.4, but if I code something like this, will
> run under MacOS X 10.4?
Selective use of a class at runtime is a little more difficult given
how trivial it is to test for method support (respondsToSelector:)...
Let me see if I can find a good example of how to selectively use a
class at runtime.
-Shawn
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