On Jan 31, 2013, at 21:51 , Kyle Sluder <[email protected]> wrote: > All CFTypes are toll-free bridges to NSObject. (I was surprised when I > learned this, and I don't know how far back this holds true.)
> GCD objects and XPC objects are NSObjects as of 10.8. Ah, yes, I see now this is so, now that I look. I presume the reason these don't work with KVC is that KVC checks the type information of a property and will see something like this: > /* CoreGraphics - CGPath.h > Copyright (c) 2001-2011 Apple Inc. > All rights reserved. */ > > typedef struct CGPath *CGMutablePathRef; > typedef const struct CGPath *CGPathRef; So KVC isn't going to know these are objects. Interestingly, types like 'dispatch_semaphore_t' aren't declared this way, so they probably *do* work via 'valueForKey:' without assistance. _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
