objc:objc-object-from-pointer

(objc:objc-object-from-pointer pointer)

The Lisp object associated with an Objective-C object: the objc:standard-objc-object of an instance of a class objc:define-objc-class defined (made by make-instance, or when Objective-C allocated it), the Lisp class for such a class, and nil for any other object. Part of the macOS-only objc package -- the interpreter (java -jar, or the rontolisp native binary), a compiled .class / .jar and a --native executable for macOS on Apple silicon, never a .wasm; on a machine without the runtime it signals an error. See the macOS GUI guide.

CL-USER> (objc:objc-object-from-pointer *s*)
NIL