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-rw-r--r--lisp/frame.el5
1 files changed, 3 insertions, 2 deletions
diff --git a/lisp/frame.el b/lisp/frame.el
index ddd565602b5..9ad7e261521 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -580,8 +580,9 @@ is given and non-nil, the unwanted frames are iconified instead."
;;;; frame parameters.
(defun frame-parameter (frame parameter)
- "Return FRAME's value for parameter PARAMETER."
- (cdr (assq parameter(frame-parameters frame))))
+ "Return FRAME's value for parameter PARAMETER.
+If FRAME is omitted, describe the currently selected frame."
+ (cdr (assq parameter (frame-parameters frame))))
(defun frame-height (&optional frame)
"Return number of lines available for display on FRAME.