From ea951766c562af6f2ab08016ab83bd18ffbc6168 Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Tue, 18 Jul 1995 22:10:51 +0000 Subject: [PATCH] Explain how redisplay updates window-start. --- lispref/windows.texi | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/lispref/windows.texi b/lispref/windows.texi index 27925e9be8c..fe6db12f2b4 100644 --- a/lispref/windows.texi +++ b/lispref/windows.texi @@ -1003,8 +1003,14 @@ When you create a window, or display a different buffer in it, the display-start position is set to a display-start position recently used for the same buffer, or 1 if the buffer doesn't have any. -For a realistic example, see the description of @code{count-lines} in -@ref{Text Lines}. +Redisplay updates the window-start position (if you have not specified +it explicitly since the previous redisplay) so that point appears on the +screen. Nothing except redisplay automatically changes the window-start +position; if you move point, do not expect the window-start position to +change in response until after the next redisplay. + +For a realistic example of using @code{window-start}, see the +description of @code{count-lines} in @ref{Text Lines}. @end defun @defun window-end &optional window -- 2.39.2