This section applies only to Macintosh and iOS platforms. See the LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual for details.
The types of the method arguments and result can now be specified in a call to objc:invoke. This is primarily intended for invoking methods using vector types, which are not compatible with the Objective-C Runtime type encoding API. See "Invoking a method that uses vector types" in the
LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual
for more details.
The accessor objc:objc-object-var-value now works with variables of all types.
LispWorks Release Notes and Installation Guide - 19 Oct 2017