This pane is used to display progress during a lengthy task. It has no interactive behavior.
The range-pane accessors
(setf range-start)
and
(setf range-end)
are used to specify integers delimiting the range of values the progress bar can display.
The accessor
(setf range-slug-start)
is used to set an integer value for the progress indicator.
CAPI Reference Manual - 15 Dec 2011