Fix and document components of mouse event position.

 src/keyboard.c (make_lispy_position): Put a meaningful value in yret
 when the click is on the header or mode line.
 doc/lispref/commands.texi (Click Events): Document the values of X, Y and
 COL, ROW in the event's position, when the click is on the header or
 mode line, on the fringes, or in the margins.

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 8f57bc45da5..d1c2d861eb7 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,9 @@
+2010-11-26  Eli Zaretskii  <eliz@gnu.org>
+
+        * commands.texi (Click Events): Document the values of X, Y and
+        COL, ROW in the event's position, when the click is on the header
+        or mode line, on the fringes, or in the margins.
+
 2010-11-17  Eli Zaretskii  <eliz@gnu.org>
 
         * customize.texi (Composite Types): Lower-case index entry.