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-rw-r--r--lisp/ChangeLog5
-rw-r--r--lisp/subr.el4
2 files changed, 8 insertions, 1 deletions
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 3191718bcfc..bd5d5576867 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2010-12-12 Eli Zaretskii <eliz@gnu.org>
+
+ * subr.el (posn-col-row): Evaluate header-line-format in the
+ context of the POSITION window's buffer.
+
2010-12-11 Glenn Morris <rgm@gnu.org>
* subr.el (member-ignore-case, run-mode-hooks, insert-for-yank-1)
diff --git a/lisp/subr.el b/lisp/subr.el
index c0f65897f29..e4be7df50c7 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -958,7 +958,9 @@ and `event-end' functions."
(setq spacing 0)))
(cons (/ (car pair) (frame-char-width frame))
(- (/ (cdr pair) (+ (frame-char-height frame) spacing))
- (if (null header-line-format) 0 1))))))))
+ (if (null (with-current-buffer (window-buffer window)
+ header-line-format))
+ 0 1))))))))
(defun posn-actual-col-row (position)
"Return the actual column and row in POSITION, measured in characters.