master 92fa0df30b: Improve doc for `display-monitors-changed-functions'

[Po Lu]

branch: master
commit 92fa0df30be7a4e3947cdeca89280947794ac7d6
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Improve doc for `display-monitors-changed-functions'
    
    * doc/lispref/frames.texi (Multiple Terminals): Describe how to
    retrieve the new monitor configuration inside
    `display-monitor-attributes-list'.
---
 doc/lispref/frames.texi | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/lispref/frames.texi b/doc/lispref/frames.texi
index 7d600b5a0c..e8765cf958 100644
--- a/doc/lispref/frames.texi
+++ b/doc/lispref/frames.texi
@@ -465,7 +465,9 @@ changes, which can happen if a monitor is rotated, moved, 
added or
 removed from a multiple-monitor setup, if the primary monitor changes,
 or if the resolution of a monitor changes.  It is called with a single
 argument consisting of the terminal on which the monitor configuration
-changed.
+changed.  Programs should call @code{display-monitor-attributes-list}
+with the terminal as the argument to retrieve the new monitor
+configuration on that terminal.
 @end defvar
 
 @node Frame Geometry