Which framework to use CGImage?

FROM : Jean-Nicolas Jolivet
DATE : Tue Nov 18 09:18:45 2008

What framework has to be linked/imported to use CGImages? I tried 
<Quartz/Quartz.h> but when I try to load an image using:

CGImageSourceRef source = 
CGImageSourceCreateWithURL( (CFURLRef)imgUrl, NULL);

I get the following error:
<Error>: CGImageSourceCreateWithURL failed with error code -15.


I am already importing <QuartzCore/QuartzCore.h> because I'm using 
CIImag, however, now I need to use CGImage and for some reason I can't 
get it to work...


Jean-Nicolas Jolivet
<email_removed>
http://www.silverscripting.com