Created (and destroyed) only by prompt-with-list-non-focus and text-input-pane-in-place-complete.
The class non-focus-list-interface is the class of interface created and destroyed only by prompt-with-list-non-focus and text-input-pane-in-place-complete. Do not instantiate this class directly.
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017