Returns the bounds of the selection in a text-input-pane.
The function text-input-pane-selection
returns as multiple values the bounding indexes of the selection in
pane
. That is,
start
is the inclusive index of the first selected character, and
end
is one greater than the index of the last selected character.
If there is no selection, then both start and end are the caret position in pane .
set-text-input-pane-selection
text-input-pane
text-input-pane-selected-text
text-input-pane-selection-p
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017