Re: Checking System Version
Re: Checking System Version
- Subject: Re: Checking System Version
- From: Finlay Dobbie <email@hidden>
- Date: Mon, 1 Aug 2005 16:38:21 +0100
On 8/1/05, Philip Dow <email@hidden> wrote:
> Right now I am importing "/usr/include/objc/objc-runtime.h" and
> calling objc_lookUpClass([@"NSViewAnimation" cString]) at init to
> check for the view animation. If it exists, I set a bool in user
> defaults that tells me the system is 10.4. Although this works, it
> seems sloppy. Is there a better way?
Use NSClassFromString instead of objc_lookUpClass :-)
I believe the preferred solution is to test for what you're looking
for... So if NSClassFromString(@"NSViewAnimation") returns nil then
you just don't use it.
> I found an excellent article over at cocoadevcentral that documents a
> couple of options. I could check the NSAppKitVersionNumber, however,
> even in my 10.4 frameworks, the highest constant defined by
> NSApplication.h is NSAppKitVersionNumber10_3_5. That won't do.
Well, you can determine what the AppKit version number is on 10.4 for
yourself if you really want to. It looks to me that it's 824.
> Alternately, I could call Gestalt() from within the Carbon frameworks
> and check that the version returned is greater than 0x1040. I like
> this better than what I'm doing now, but I have to add the carbon
> frameworks.
Well, you're already indirectly linking against the Carbon frameworks,
so what's the problem?
-- Finlay
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