An instance of
or a class defined by
returns the Objective-C foreign pointer associated with a given Lisp object. If
is an instance of standard-objc-object then
will have foreign type objc-object-pointer. Otherwise,
should be a class defined by define-objc-class and the associated Objective-C class object is returned as a foreign pointer of type objc-class.
(objc-object-from-pointer pointer )
LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual - 15 Dec 2011