In researching iOS, I found a few mighty good resources for coding information which I wanted to share with you.
This is about CoreImage but I think there’ll be more to find: http://wwwbruegge.in.tum.de/lehrstuhl_1/home/98-teaching/tutorials/506-sgd-ws13-tutorial-core-image
And a link from that brought me here where there’s tons of brillant tutorials: http://www.raywenderlich.com
Of course, they are using XCode & Swift, but most of the information should be easily translatable into Xojo.
[quote=163340:@Ulrich Bogun]In researching iOS, I found a few mighty good resources for coding information which I wanted to share with you.
This is about CoreImage but I think there’ll be more to find: http://wwwbruegge.in.tum.de/lehrstuhl_1/home/98-teaching/tutorials/506-sgd-ws13-tutorial-core-image
And a link from that brought me here where there’s tons of brillant tutorials: http://www.raywenderlich.com
Of course, they are using XCode & Swift, but most of the information should be easily translatable into Xojo.[/quote]
I like Rawenderlich.com too. Nice place 
+1 on raywenderlich.com
Great written tutorials and the video subscription is well worth it if you like to learn in that fashion.
Kind of like RBLibrary meets BKeeney video tutorials for Swift/Obj C