I'm trying to access intrinsic matrix following this answer. By running the commend below, I was able to get a 48-byte AnyObject, and I further convert it into a CFData. let camData = CMGetAttach...

I have a line in a code which became deprecated, there are suggestions in XCode what to replace it with, but I can't get my head around the difference, these are my three lines which worked: let p...

This code type checks and compiles but then crashes. How do I save a CGImage to Data so that I can read it in again later. let cgi: CGImage? = ... var mData = Data() let imageDest = CGImageDestin...

When I return a CFDataRef by (CFDataRef)MyFunction{ ..... CFDataRef data = CFDataCreate(NULL, buf, bufLen); free(buf); return data; } There is a memory leak, how to make CFDataRef autorelea...

I am having a little query regarding Extracting specifically images ( only images ) from a supplied PDF document in iPhone Application. I have gone through the documentation of apple - But I am fa...

after multiple days of banging my head against the wall and having sleepless nights I'm hoping to find some help here. I've gone through various posts here, but none of the answers seem to provide ...