Objective-c undeclared identifier for CGImageDestinationRef

Question

I have CoreGraphics, QuartzCore and AssetsLibrary frameworks imported. Why would I be getting an undeclared identifier error for CGImageDestinationRef?

Here is how I am declaring it:

 CGImageDestinationRef imageDestinationRef = CGImageDestinationCreateWithURL((__bridge CFURLRef)directoryURL, kUTTypeJPEG, 1, NULL);

Answer 1

Because its defined in the ImageIO framework. Link and import it and you'll be fine.

Also the kUTTTypeJPEG constant is defined in the MobileCoreServices framework, so you will need that too.