+With @samp{--progress=bar}, there are currently two possible parameters,
+@var{force} and @var{noscroll}.
+
+When the output is not a TTY, the progress bar always falls back to ``dot'',
+even if @samp{--progress=bar} was passed to Wget during invokation. This
+behaviour can be overridden and the ``bar'' output forced by using the ``force''
+parameter as @samp{--progress=bar:force}.
+
+By default, the @samp{bar} style progress bar scroll the name of the file from
+left to right for the file being downloaded if the filename exceeds the maximum
+length allotted for its display. In certain cases, such as with
+@samp{--progress=bar:force}, one may not want the scrolling filename in the
+progress bar. By passing the ``noscroll'' parameter, Wget can be forced to
+display as much of the filename as possible without scrolling through it.
+