2 files changed, 9 insertions, 0 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index e96ea3fbbc3..4b629e6f4dd 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,7 @@
+2014-03-01  Glenn Morris  <rgm@gnu.org>
+
+        * display.texi (Forcing Redisplay): Mention pre-redisplay-function.
+
 2014-02-28  Xue Fuqiao  <xfq@gnu.org>
 
         * functions.texi (Advising Functions):
diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 9aae04ae32a..74a3172b75a 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -117,6 +117,11 @@ This variable has no effect when @code{redisplay-dont-pause} is
 non-@code{nil} (the default).
 @end defvar
 
+@defvar pre-redisplay-function
+A function run just before redisplay.  It is called with one argument,
+the set of windows to redisplay.
+@end defvar
+
   Although @code{redisplay} tries immediately to redisplay, it does
 not change how Emacs decides which parts of its frame(s) to redisplay.
 By contrast, the following function adds certain windows to the