From fdefc4d152c2a6d79bcfefd9450758140afbdf9a Mon Sep 17 00:00:00 2001 From: "Kim F. Storm" Date: Tue, 13 Jun 2006 22:18:38 +0000 Subject: [PATCH] (Waiting): Negative arg to sit-for forces redisplay even if input is pending. --- lispref/commands.texi | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lispref/commands.texi b/lispref/commands.texi index 0723c368bba..a75c0c89fec 100644 --- a/lispref/commands.texi +++ b/lispref/commands.texi @@ -2532,8 +2532,11 @@ point number, @code{sit-for} waits for a fractional number of seconds. Some systems support only a whole number of seconds; on these systems, @var{seconds} is rounded down. +If @var{seconds} is negative, force a redisplay even if there is +pending input. So use @code{(sit-for -1)} to force a redisplay. + The expression @code{(sit-for 0)} is a convenient way to request a -redisplay, without any delay. @xref{Forcing Redisplay}. +redisplay, without any delay, if there is no pending input. @xref{Forcing Redisplay}. If @var{nodisp} is non-@code{nil}, then @code{sit-for} does not redisplay, but it still returns as soon as input is available (or when -- 2.39.5