objc:ensure-objc-initialized

(objc:ensure-objc-initialized &key modules)

Loads each of modules -- the path of a framework binary or a dylib -- and opens the Objective-C runtime, answering nil. The other functions open the runtime on their first use, so unlike LispWorks calling this first is optional; what it adds is loading frameworks AppKit does not already bring in, whose classes do not exist until one is loaded. A path that cannot be loaded signals an error naming it. 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:ensure-objc-initialized
           :modules '("/System/Library/Frameworks/Vision.framework/Vision"))
NIL
CL-USER> (objc:coerce-to-objc-class "VNRecognizeTextRequest")
#<Pointer: OBJC:OBJC-CLASS = #x00000001FB3C2A10>