I haven really done av in objc, but im guessing you can try obtaining a delegate through the sound framework and I think its subclass the events a delegate is someone who is like a broker for resources in a class or object

I figured it out, you need to add ALL libraries and c flags to compiler options, and you should be able to compile and run GTK apps directly from Xcode.

@claude31 the goal is a simple interface to c/objc/swift, it borrows elements from gtk, qt, c, outlets I can write decent c code I just can't do swift and objc