Call operator for objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, objc.CGRect)>.
objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, objc.CGRect)>
Available on ObjCBlock<Void Function(Pointer<Void>, CGRect)>, provided by the ObjCBlock_ffiVoid_ffiVoid_NSRect_CallExtension extension