I have been looking through all the Apple Documentation for a Guide to developing MacOS Application via Swift. For example, there is an excellent reference "Develop in Swift: Fundamentals" - but it is completely iOS/UIKit focused. While there are some notes and tutorials - there are no up-to-date guides for MacOS Development using AppKit or any other frameworks. There is just a simple list of APIs at https://developer.apple.com/documentation/appkit. The series of books above are for iOS/UIKit only. How does one start to learn MacOS Application development with the documentation that is provided? There are a few random tutorials, but nothing like the documentation written for iOs. It seems that Apple doesn't want you coding Mac Applications - but rather iOS Apps instead. Also - I am confused on which path to head down : SwiftUI or Appkit. It seems that SwiftUI is the future - but the information about using SwiftUI on MacOS is even less! It feels like to learn Mac Development I NEED to learn iOS development - starting with UIKit and then learning SwiftUI. This seems like such a waste of time - I would rather just start to learn MacOS programming. It would be brilliant if there was a "Develop in Swift: Fundamentals" for MacOS - but it seems like they don't want to spend the effort to teach MacOS Development. Maybe MacOS won't be around for the long term - but having the ability to quickly develop some custom Mac Applications would help me in the short term.

I am using storyboards for a Mac OS X programs and have a Tab View Controller. When the Tab View Controller is segued onto to screen I would like to do some setup on each of the view controllers for the tabs.The documentation for the NSTabViewController states: "Each tab is represented by an NSTabViewItem object, which contains the name of the tab and stores a pointer to the child view controller that manages the tab’s content."This is exactly what I want - "a pointer to the child view controller that manages the tab’s content." Great!But no so great -- there is no variable or method in NSTabViewItem that gives me a pointer to a view controller!! I find this very confusing. I have scanned the documentation of NSTabViewItem from top to bottom, plus looked that the header file. There is no mention of a "pointer to the child view controller" anywhere!The documentation clearly states that this pointer is there - but I can't find it. Am I missing something obvious?Thanks.