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, 5 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 61ef9a202a8..eac550a7334 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2010-11-26  Eli Zaretskii  <eliz@gnu.org>
+
+        * keyboard.c (make_lispy_position): Put a meaningful value in yret
+        when the click is on the header or mode line.
+
 2010-11-25  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (set_cursor_from_row): Don't forget to consider the