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Re: Little question on kCFCoreFoundationVersionNumber

So it is... IMO it is strange that is has a 'k' in front of it then but
I guess it does make sense. Often constants like that are done as
#defines or enums not global constant variables. Also I saw the
following in my quick code search so I assumed it was all macro based.

#define kCFCoreFoundationVersionNumber10_0 196.4

Sorry for the confusion.

-Shawn

On Monday, September 29, 2003, at 10:26 AM, Stiphane Sudre wrote:

> It's really a runtime double value. I just checked this on a 10.2 and
> 10.1 OS and the built tool is returning different values.
>
> It's the API version I'm interested in as I need to check whether a
> method is available or not.
>
> On lundi, sep 29, 2003, at 18:26 Europe/Paris, Shawn Erickson wrote:
>
>>
>> On Monday, September 29, 2003, at 08:54 AM, Stiphane Sudre wrote:
>>
>>> kCFCoreFoundationVersionNumber
>>
>> You cannot use the above to know what version of OS your Application
>> is running on. It is a _compile_ time macro not a runtime check.
>>
>> Try reading over the following tech. note.
>>
>> http://developer.apple.com/technotes/tn2002/tn2064.html
>>
>> If you really want to know the OS version, not just if an API /
>> method is supported then consider using Gestalt [1].
>>
>> OSStatus status;
>> SInt32 response;
>>
>> status = Gestalt(gestaltSystemVersion, &response);
>> if (status != noErr)
>> response = 0;
>>
>> if (response >= 0x1030)
>> {
>> // we are running on 10.3 or later
>> }
>>
>> -Shawn
>>
>> [1] Code suggested by Jim Correia on the Apple Mac OS X dev list.
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References: 
 >Re: Little question on kCFCoreFoundationVersionNumber (From: Stéphane Sudre <email@hidden>)



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