Re: Arguments for callback function
Re: Arguments for callback function
- Subject: Re: Arguments for callback function
- From: Liwei <email@hidden>
- Date: Mon, 4 Aug 2008 00:48:43 +0800
Ah, thank you. That's useful!
2008/8/4 Shawn Erickson <email@hidden>:
>
> On Aug 3, 2008, at 9:15 AM, Liwei wrote:
>
>> Okay, I'm curious, what is the copyDescription parameter for? Retain
>> and release I understand, but the description for copyDescription is
>> too cryptic. I am thinking it could be useful for something.
>
> It is used to get a string description for the purposes of
> logging/debugging. For example via a call to CFShow().
>
> <http://developer.apple.com/documentation/CoreFoundation/Conceptual/CFDesignConcepts/Tasks/Inspecting.html#//apple_ref/doc/uid/20001113-CJBEHAAG>
>
> -Shawn
>
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