The function choice-selected-items returns the currently selected items in a choice as a list of the items.
The function choice-selected-items returns the currently selected items in a choice as a list of the items. A setf method is provided as a means of setting the currently selected items. In the case of single-selection choices, it is usually easier to use the complementary function choice-selected-item , which returns the selected item as its result.
In LispWorks 3.1, choice-selected-items returned a single item for single-selection list panels but this was considered to cause problems and so it was changed to always return a list, and the alternative function choice-selected-item was provided for single selection panes.
First we set up a multiple selection choice -- in this case, a list panel.
(setq list (capi:contain
(make-instance
'capi:list-panel
:items '(a b c d e)
:visible-min-height '(:character 5)
:interaction :multiple-selection
:selection '(1 3))
:process nil))
The following code line returns the selections of the list.
(capi:choice-selected-items list)The selections of the list panel can be changed and redisplayed using the following code.
(setf (capi:choice-selected-items list) '(a c e))
(capi:choice-selected-items list)