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Re: autorelease CGImageRef?
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Re: autorelease CGImageRef?


  • Subject: Re: autorelease CGImageRef?
  • From: Mike Abdullah <email@hidden>
  • Date: Wed, 6 Aug 2008 11:16:22 +0100

Since CGImage is derived from CFType you can just do:

[(id)aCGImageRef autorelease]

The reason being that CFType knows how to handle a -release message, and autorelease is just a way of deferring that message.

On 6 Aug 2008, at 09:29, Peter N Lewis wrote:

Given a CGImageRef, how can I autorelease it?

Perhaps this is obvious, or perhaps its impossible, but googling hasn't found me the answer yet except for a tantalizing comment in the docs for NSBitmapImageRep:

- (CGImageRef)CGImage (added in 10.5)
"Returns an autoreleased CGImage object (an opaque type) from the receiver's current bitmap data."


For CFStringRef, I know I can cast it to an NSString* and then autorelease it, but is there an equivalent for CGImageRef?

Thanks,
  Peter.

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