cocoa:set-ns-rect*

(cocoa:set-ns-rect* rect x y width height)

Sets an NSRect -- a vector of at least four elements, or a foreign object of the type -- to #(x y width height) and answers it. Part of the macOS-only cocoa package, beside objc. See the macOS GUI guide.

CL-USER> (objc:invoke (objc:invoke "NSValue" "valueWithRect:"
                                  (cocoa:set-ns-rect* (make-array 4) 0 0 640 480))
                     "rectValue")
#(0.0 0.0 640.0 480.0)