I bought:
https://www.bignerdranch.com/we-write/cocoa-programming/
I've got version 3, 4 & 5.
Working through 4 now as it's ObjC.
I'm going to document things I've had to look up.
Chapter 2
Probably look back and say why didn't I spot this but it should help it not happing again:
Unknown type name 'NSTextField'
#import <Cocoa/Cocoa.h>
Could have just added a .pch file
Project Settings Under the 'Apple LLVM 6.0 - Language' section in the 'Prefix Header' I added "
Random-Prefix.pch
#ifdef __OBJC__
#import <Cocoa/Cocoa.h>
#endif
.
