text-input-choice behaves in the same way as a text-input-pane, but has additional functionality. The element inherits from choice, and the choice
are used as the items to display when the user clicks on the button.
The user can edit the items in a
text-input-choice. For an element with similar functionality which does not allow editing, see option-pane.
In LispWorks 6.0 and earlier versions the text-input-pane initarg value
:read-only is not supported for
text-input-choice on Microsoft Windows. This restriction is removed for LispWorks 6.1 and later versions.
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017