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emacs/lisp/menu-bar.el
1995-06-29 21:35:08 +00:00

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;;; menu-bar.el --- define a default menu bar.
;; Author: RMS
;; Keywords: internal
;; Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Code:
;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key
;; definitions made in loaddefs.el.
(or (lookup-key global-map [menu-bar])
(define-key global-map [menu-bar] (make-sparse-keymap "menu-bar")))
(defvar menu-bar-help-menu (make-sparse-keymap "Help"))
;; Force Help item to come last, after the major mode's own items.
;; The symbol used to be called `help', but that gets confused with the
;; help key.
(setq menu-bar-final-items '(help-menu))
(define-key global-map [menu-bar help-menu] (cons "Help" menu-bar-help-menu))
(defvar menu-bar-search-menu (make-sparse-keymap "Search"))
(define-key global-map [menu-bar search] (cons "Search" menu-bar-search-menu))
(defvar menu-bar-edit-menu (make-sparse-keymap "Edit"))
(define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
(defvar menu-bar-tools-menu (make-sparse-keymap "Tools"))
(define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
(defvar menu-bar-files-menu (make-sparse-keymap "Files"))
(define-key global-map [menu-bar files] (cons "Files" menu-bar-files-menu))
;; This alias is for compatibility with 19.28 and before.
(defvar menu-bar-file-menu menu-bar-files-menu)
(defvar vc-menu-map (make-sparse-keymap "Version Control"))
(define-key menu-bar-tools-menu [calendar] '("Display Calendar" . calendar))
(define-key menu-bar-tools-menu [rmail] '("Read Mail" . rmail))
(define-key menu-bar-tools-menu [gnus] '("Read Net News" . gnus))
(define-key menu-bar-tools-menu [separator-vc]
'("--"))
(define-key menu-bar-tools-menu [vc-menu]
(cons "Version Control" vc-menu-map))
(define-key menu-bar-tools-menu [separator-compare]
'("--"))
(define-key menu-bar-tools-menu [epatch]
'("Apply Patch" . menu-bar-epatch-menu))
(define-key menu-bar-tools-menu [ediff-merge]
'("Merge" . menu-bar-ediff-merge-menu))
(define-key menu-bar-tools-menu [compare]
'("Compare" . menu-bar-ediff-menu))
(define-key menu-bar-tools-menu [separator-print]
'("--"))
(put 'print-region 'menu-enable 'mark-active)
(put 'ps-print-region-with-faces 'menu-enable 'mark-active)
(define-key menu-bar-tools-menu [ps-print-region]
'("Postscript Print Region" . ps-print-region-with-faces))
(define-key menu-bar-tools-menu [ps-print-buffer]
'("Postscript Print Buffer" . ps-print-buffer-with-faces))
(define-key menu-bar-tools-menu [print-region]
'("Print Region" . print-region))
(define-key menu-bar-tools-menu [print-buffer]
'("Print Buffer" . print-buffer))
(define-key menu-bar-files-menu [exit-emacs]
'("Exit Emacs" . save-buffers-kill-emacs))
(define-key menu-bar-files-menu [separator-exit]
'("--"))
(define-key menu-bar-files-menu [one-window]
'("One Window" . delete-other-windows))
(define-key menu-bar-files-menu [split-window]
'("Split Window" . split-window-vertically))
(if (fboundp 'delete-frame)
(progn
(define-key menu-bar-files-menu [delete-frame]
'("Delete Frame" . delete-frame))
(define-key menu-bar-files-menu [make-frame-on-display]
'("Open New Display..." . make-frame-on-display))
(define-key menu-bar-files-menu [make-frame]
'("Make New Frame" . make-frame))))
(define-key menu-bar-files-menu [separator-buffers]
'("--"))
(define-key menu-bar-files-menu [kill-buffer]
'("Kill Current Buffer" . kill-this-buffer))
(define-key menu-bar-files-menu [insert-file]
'("Insert File..." . insert-file))
(define-key menu-bar-files-menu [revert-buffer]
'("Revert Buffer" . revert-buffer))
(define-key menu-bar-files-menu [write-file]
'("Save Buffer As..." . write-file))
(define-key menu-bar-files-menu [save-buffer] '("Save Buffer" . save-buffer))
(define-key menu-bar-files-menu [dired] '("Open Directory..." . dired))
(define-key menu-bar-files-menu [open-file] '("Open File..." . find-file))
;; This is just one element of the ediff menu--the first.
(define-key menu-bar-ediff-menu [window]
'("This Window And Next Window" . compare-windows))
(defun nonincremental-search-forward (string)
"Read a string and search for it nonincrementally."
(interactive "sSearch for string: ")
(if (equal string "")
(search-forward (car search-ring))
(isearch-update-ring string nil)
(search-forward string)))
(defun nonincremental-search-backward (string)
"Read a string and search backward for it nonincrementally."
(interactive "sSearch for string: ")
(if (equal string "")
(search-backward (car search-ring))
(isearch-update-ring string nil)
(search-backward string)))
(defun nonincremental-re-search-forward (string)
"Read a regular expression and search for it nonincrementally."
(interactive "sSearch for regexp: ")
(if (equal string "")
(re-search-forward (car regexp-search-ring))
(isearch-update-ring string t)
(re-search-forward string)))
(defun nonincremental-re-search-backward (string)
"Read a regular expression and search backward for it nonincrementally."
(interactive "sSearch for regexp: ")
(if (equal string "")
(re-search-backward (car regexp-search-ring))
(isearch-update-ring string t)
(re-search-backward string)))
(defun nonincremental-repeat-search-forward ()
"Search forward for the previous search string."
(interactive)
(search-forward (car search-ring)))
(defun nonincremental-repeat-search-backward ()
"Search backward for the previous search string."
(interactive)
(search-backward (car search-ring)))
(defun nonincremental-repeat-re-search-forward ()
"Search forward for the previous regular expression."
(interactive)
(re-search-forward (car regexp-search-ring)))
(defun nonincremental-repeat-re-search-backward ()
"Search backward for the previous regular expression."
(interactive)
(re-search-backward (car regexp-search-ring)))
(define-key menu-bar-search-menu [query-replace-regexp]
'("Query Replace Regexp..." . query-replace-regexp))
(define-key menu-bar-search-menu [query-replace]
'("Query Replace..." . query-replace))
(define-key menu-bar-search-menu [find-tag]
'("Find Tag..." . find-tag))
(define-key menu-bar-search-menu [bookmark]
'("Bookmarks" . menu-bar-bookmark-map))
(define-key menu-bar-search-menu [separator-search]
'("--"))
(define-key menu-bar-search-menu [nonincremental-repeat-re-search-back]
'("Repeat Regexp Backwards" . nonincremental-repeat-re-search-backward))
(define-key menu-bar-search-menu [nonincremental-repeat-search-back]
'("Repeat Backwards" . nonincremental-repeat-search-backward))
(define-key menu-bar-search-menu [nonincremental-repeat-re-search-fwd]
'("Repeat Regexp" . nonincremental-repeat-re-search-forward))
(define-key menu-bar-search-menu [nonincremental-repeat-search-fwd]
'("Repeat Search" . nonincremental-repeat-search-forward))
(define-key menu-bar-search-menu [separator-repeat]
'("--"))
(define-key menu-bar-search-menu [re-search-back]
'("Regexp Search Backwards..." . nonincremental-re-search-backward))
(define-key menu-bar-search-menu [search-back]
'("Search Backwards..." . nonincremental-search-backward))
(define-key menu-bar-search-menu [re-search-fwd]
'("Regexp Search..." . nonincremental-re-search-forward))
(define-key menu-bar-search-menu [search-fwd]
'("Search..." . nonincremental-search-forward))
(if (fboundp 'start-process)
(define-key menu-bar-edit-menu [spell] '("Spell" . ispell-menu-map)))
(define-key menu-bar-edit-menu [fill] '("Fill" . fill-region))
(define-key menu-bar-edit-menu [props] '("Text Properties" . facemenu-menu))
(define-key menu-bar-edit-menu [separator-edit]
'("--"))
(define-key menu-bar-edit-menu [clear] '("Clear" . delete-region))
(define-key menu-bar-edit-menu [paste] '("Paste Most Recent" . yank))
(defvar yank-menu (cons "Select Yank" nil))
(fset 'yank-menu (cons 'keymap yank-menu))
(define-key menu-bar-edit-menu [select-paste] '("Select and Paste" . yank-menu))
(define-key menu-bar-edit-menu [copy] '("Copy" . menu-bar-kill-ring-save))
(define-key menu-bar-edit-menu [cut] '("Cut" . kill-region))
(define-key menu-bar-edit-menu [undo] '("Undo" . undo))
(defun menu-bar-kill-ring-save (beg end)
(interactive "r")
(if (mouse-region-match)
(message "Select a region with the mouse does `copy' automatically")
(kill-ring-save beg end)))
(put 'fill-region 'menu-enable '(and mark-active (not buffer-read-only)))
(put 'kill-region 'menu-enable '(and mark-active (not buffer-read-only)))
(put 'menu-bar-kill-ring-save 'menu-enable 'mark-active)
(put 'yank 'menu-enable '(and (x-selection-exists-p) (not buffer-read-only)))
(put 'yank-menu 'menu-enable '(and (cdr yank-menu) (not buffer-read-only)))
(put 'delete-region 'menu-enable '(and mark-active
(not buffer-read-only)
(not (mouse-region-match))))
(put 'undo 'menu-enable '(and (not buffer-read-only)
(if (eq last-command 'undo)
pending-undo-list
(consp buffer-undo-list))))
(put 'query-replace 'menu-enable '(not buffer-read-only))
(put 'query-replace-regexp 'menu-enable '(not buffer-read-only))
(autoload 'ispell-menu-map "ispell" nil t 'keymap)
;; These are alternative definitions for the cut, paste and copy
;; menu items. Use them if your system expects these to use the clipboard.
(put 'clipboard-kill-region 'menu-enable 'mark-active)
(put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
(put 'clipboard-yank 'menu-enable
'(or (x-selection-exists-p) (x-selection-exists-p 'CLIPBOARD)))
(defun clipboard-yank ()
"Reinsert the last stretch of killed text, or the clipboard contents."
(interactive)
(let ((x-select-enable-clipboard t))
(yank)))
(defun clipboard-kill-ring-save (beg end)
"Copy region to kill ring, and save in the X clipboard."
(interactive "r")
(let ((x-select-enable-clipboard t))
(kill-ring-save beg end)))
(defun clipboard-kill-region (beg end)
"Kill the region, and save it in the X clipboard."
(interactive "r")
(let ((x-select-enable-clipboard t))
(kill-region beg end)))
(defun menu-bar-enable-clipboard ()
"Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
Do the same for the keys of the same name."
(interactive)
;; We can't use constant list structure here because it becomes pure,
;; and because it gets modified with cache data.
(define-key menu-bar-edit-menu [paste]
(cons "Paste" 'clipboard-yank))
(define-key menu-bar-edit-menu [copy]
(cons "Copy" 'clipboard-kill-ring-save))
(define-key menu-bar-edit-menu [cut]
(cons "Cut" 'clipboard-kill-region))
(define-key global-map [f20] 'clipboard-kill-region)
(define-key global-map [f16] 'clipboard-kill-ring-save)
(define-key global-map [f18] 'clipboard-yank)
;; X11R6 versions
(define-key global-map [cut] 'clipboard-kill-region)
(define-key global-map [copy] 'clipboard-kill-ring-save)
(define-key global-map [paste] 'clipboard-yank))
(define-key menu-bar-help-menu [emacs-version]
'("Show Version" . emacs-version))
(define-key menu-bar-help-menu [report-emacs-bug]
'("Send Bug Report..." . report-emacs-bug))
(define-key menu-bar-help-menu [emacs-tutorial]
'("Emacs Tutorial" . help-with-tutorial))
(define-key menu-bar-help-menu [man] '("Man..." . manual-entry))
(define-key menu-bar-help-menu [describe-variable]
'("Describe Variable..." . describe-variable))
(define-key menu-bar-help-menu [describe-function]
'("Describe Function..." . describe-function))
(define-key menu-bar-help-menu [describe-key]
'("Describe Key..." . describe-key))
(define-key menu-bar-help-menu [list-keybindings]
'("List Keybindings" . describe-bindings))
(define-key menu-bar-help-menu [command-apropos]
'("Command Apropos..." . command-apropos))
(define-key menu-bar-help-menu [describe-mode]
'("Describe Mode" . describe-mode))
(define-key menu-bar-help-menu [info] '("Browse Manuals" . info))
(define-key menu-bar-help-menu [emacs-faq] '("Emacs FAQ" . view-emacs-FAQ))
(define-key menu-bar-help-menu [emacs-news] '("Emacs News" . view-emacs-news))
(defun kill-this-buffer () ; for the menubar
"Kills the current buffer."
(interactive)
(kill-buffer (current-buffer)))
(defun kill-this-buffer-enabled-p ()
(let ((count 0)
(buffers (buffer-list)))
(while buffers
(or (string-match "^ " (buffer-name (car buffers)))
(setq count (1+ count)))
(setq buffers (cdr buffers)))
(and (not (window-minibuffer-p (selected-window)))
(> count 1))))
(put 'kill-this-buffer 'menu-enable '(kill-this-buffer-enabled-p))
(put 'save-buffer 'menu-enable
'(and (buffer-modified-p)
(not (window-minibuffer-p (selected-window)))))
(put 'write-file 'menu-enable
'(not (window-minibuffer-p (selected-window))))
(put 'find-file 'menu-enable
'(not (window-minibuffer-p (selected-window))))
(put 'dired 'menu-enable
'(not (window-minibuffer-p (selected-window))))
(put 'insert-file 'menu-enable
'(not (window-minibuffer-p (selected-window))))
(put 'revert-buffer 'menu-enable
'(or revert-buffer-function revert-buffer-insert-file-contents-function
(and (buffer-file-name)
(or (buffer-modified-p)
(not (verify-visited-file-modtime (current-buffer)))))))
;; Permit deleting frame if it would leave a visible or iconified frame.
(put 'delete-frame 'menu-enable
'(delete-frame-enabled-p))
(defun delete-frame-enabled-p ()
"Return non-nil if `delete-frame' should be enabled in the menu bar."
(let ((frames (frame-list))
(count 0))
(while frames
(if (frame-visible-p (car frames))
(setq count (1+ count)))
(setq frames (cdr frames)))
(> count 1)))
(put 'advertised-undo 'menu-enable
'(and (not (eq t buffer-undo-list))
(if (eq last-command 'undo)
(and (boundp 'pending-undo-list)
pending-undo-list)
buffer-undo-list)))
(defvar yank-menu-length 20
"*Maximum length to display in the yank-menu.")
(defun menu-bar-update-yank-menu (string old)
(let ((front (car (cdr yank-menu)))
(menu-string (if (<= (length string) yank-menu-length)
string
(concat
(substring string 0 (/ yank-menu-length 2))
"..."
(substring string (- (/ yank-menu-length 2)))))))
;; If we're supposed to be extending an existing string, and that
;; string really is at the front of the menu, then update it in place.
(if (and old (or (eq old (car front))
(string= old (car front))))
(progn
(setcar front string)
(setcar (cdr front) menu-string))
(setcdr yank-menu
(cons
(cons string (cons menu-string 'menu-bar-select-yank))
(cdr yank-menu)))))
(if (> (length (cdr yank-menu)) kill-ring-max)
(setcdr (nthcdr kill-ring-max yank-menu) nil)))
(defun menu-bar-select-yank ()
(interactive "*")
(push-mark (point))
(insert last-command-event))
(define-key global-map [menu-bar buffer] '("Buffers" . menu-bar-buffers))
(defalias 'menu-bar-buffers (make-sparse-keymap "Buffers"))
(defvar buffers-menu-max-size 10
"*Maximum number of entries which may appear on the Buffers menu.
If this is 10, then only the ten most-recently-selected buffers are shown.
If this is nil, then all buffers are shown.
A large number or nil slows down menu responsiveness.")
(defvar list-buffers-directory nil)
(defvar menu-bar-update-buffers-maxbuf)
(defun menu-bar-select-buffer ()
(interactive)
(switch-to-buffer last-command-event))
(defun menu-bar-select-frame ()
(interactive)
(make-frame-visible last-command-event)
(raise-frame last-command-event)
(select-frame last-command-event))
(defun menu-bar-update-buffers-1 (elt)
(cons (format
(format "%%%ds %%s%%s %%s" menu-bar-update-buffers-maxbuf)
(cdr elt)
(if (buffer-modified-p (car elt))
"*" " ")
(save-excursion
(set-buffer (car elt))
(if buffer-read-only "%" " "))
(let ((file
(or (buffer-file-name (car elt))
(save-excursion
(set-buffer (car elt))
list-buffers-directory)
"")))
(setq file (or (file-name-directory file)
""))
(if (> (length file) 20)
(setq file (concat "..." (substring file -17))))
file))
(car elt)))
(defvar menu-bar-buffers-menu-list-buffers-entry nil)
(defun menu-bar-update-buffers ()
;; If user discards the Buffers item, play along.
(and (lookup-key (current-global-map) [menu-bar buffer])
(frame-or-buffer-changed-p)
(let ((buffers (buffer-list))
(frames (frame-list))
buffers-menu frames-menu)
;; If requested, list only the N most recently selected buffers.
(if (and (integerp buffers-menu-max-size)
(> buffers-menu-max-size 1))
(if (> (length buffers) buffers-menu-max-size)
(setcdr (nthcdr buffers-menu-max-size buffers) nil)))
;; Make the menu of buffers proper.
(setq buffers-menu
(cons "Select Buffer"
(let* ((buffer-list
(mapcar 'list buffers))
tail
(menu-bar-update-buffers-maxbuf 0)
(maxlen 0)
alist
head)
;; Put into each element of buffer-list
;; the name for actual display,
;; perhaps truncated in the middle.
(setq tail buffer-list)
(while tail
(let ((name (buffer-name (car (car tail)))))
(setcdr (car tail)
(if (> (length name) 27)
(concat (substring name 0 12)
"..."
(substring name -12))
name)))
(setq tail (cdr tail)))
;; Compute the maximum length of any name.
(setq tail buffer-list)
(while tail
(or (eq ?\ (aref (cdr (car tail)) 0))
(setq menu-bar-update-buffers-maxbuf
(max menu-bar-update-buffers-maxbuf
(length (cdr (car tail))))))
(setq tail (cdr tail)))
;; Set ALIST to an alist of the form
;; ITEM-STRING . BUFFER
(setq tail buffer-list)
(while tail
(let ((elt (car tail)))
(or (eq ?\ (aref (cdr elt) 0))
(setq alist (cons
(menu-bar-update-buffers-1 elt)
alist)))
(and alist (> (length (car (car alist))) maxlen)
(setq maxlen (length (car (car alist))))))
(setq tail (cdr tail)))
(setq alist (nreverse alist))
;; Make the menu item for list-buffers
;; or reuse the one we already have.
;; The advantage in reusing one
;; is that it already has the keyboard equivalent
;; cached, so we save the time to look that up again.
(or menu-bar-buffers-menu-list-buffers-entry
(setq menu-bar-buffers-menu-list-buffers-entry
(cons
'list-buffers
(cons
""
'list-buffers))))
;; Update the item string for menu's new width.
(setcar (cdr menu-bar-buffers-menu-list-buffers-entry)
(concat (make-string (max (- (/ maxlen 2) 8) 0)
?\ )
"List All Buffers"))
;; Now make the actual list of items,
;; ending with the list-buffers item.
(nconc (mapcar '(lambda (pair)
;; This is somewhat risque, to use
;; the buffer name itself as the event
;; type to define, but it works.
;; It would not work to use the buffer
;; since a buffer as an event has its
;; own meaning.
(nconc (list (buffer-name (cdr pair))
(car pair)
(cons nil nil))
'menu-bar-select-buffer))
alist)
(list menu-bar-buffers-menu-list-buffers-entry)))))
;; Make a Frames menu if we have more than one frame.
(if (cdr frames)
(setq frames-menu
(cons "Select Frame"
(mapcar '(lambda (frame)
(nconc (list frame
(cdr (assq 'name
(frame-parameters frame)))
(cons nil nil))
'menu-bar-select-frame))
frames))))
(if buffers-menu
(setq buffers-menu (cons 'keymap buffers-menu)))
(if frames-menu
(setq frames-menu (cons 'keymap frames-menu)))
(define-key (current-global-map) [menu-bar buffer]
(cons "Buffers"
(if (and buffers-menu frames-menu)
(list 'keymap "Buffers and Frames"
(cons 'buffers (cons "Buffers" buffers-menu))
(cons 'frames (cons "Frames" frames-menu)))
(or buffers-menu frames-menu 'undefined)))))))
(add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
;; this version is too slow
;;;(defun format-buffers-menu-line (buffer)
;;; "Returns a string to represent the given buffer in the Buffer menu.
;;;nil means the buffer shouldn't be listed. You can redefine this."
;;; (if (string-match "\\` " (buffer-name buffer))
;;; nil
;;; (save-excursion
;;; (set-buffer buffer)
;;; (let ((size (buffer-size)))
;;; (format "%s%s %-19s %6s %-15s %s"
;;; (if (buffer-modified-p) "*" " ")
;;; (if buffer-read-only "%" " ")
;;; (buffer-name)
;;; size
;;; mode-name
;;; (or (buffer-file-name) ""))))))
;;; Set up a menu bar menu for the minibuffer.
(mapcar
(function
(lambda (map)
(define-key map [menu-bar minibuf]
(cons "Minibuf" (make-sparse-keymap "Minibuf")))))
(list minibuffer-local-ns-map
minibuffer-local-must-match-map
minibuffer-local-isearch-map
minibuffer-local-map
minibuffer-local-completion-map))
(mapcar
(function
(lambda (map)
(define-key map [menu-bar minibuf ?\?]
'("List Completions" . minibuffer-completion-help))
(define-key map [menu-bar minibuf space]
'("Complete Word" . minibuffer-complete-word))
(define-key map [menu-bar minibuf tab]
'("Complete" . 'minibuffer-complete))
))
(list minibuffer-local-must-match-map
minibuffer-local-completion-map))
(mapcar
(function
(lambda (map)
(define-key map [menu-bar minibuf quit]
'("Quit" . keyboard-escape-quit))
(define-key map [menu-bar minibuf return]
'("Enter" . exit-minibuffer))
))
(list minibuffer-local-ns-map
minibuffer-local-must-match-map
minibuffer-local-isearch-map
minibuffer-local-map
minibuffer-local-completion-map))
(defvar menu-bar-mode nil)
(defun menu-bar-mode (flag)
"Toggle display of a menu bar on each frame.
This command applies to all frames that exist and frames to be
created in the future.
With a numeric argument, if the argument is negative,
turn off menu bars; otherwise, turn on menu bars."
(interactive "P")
;; Make menu-bar-mode and default-frame-alist consistent.
(let ((default (assq 'menu-bar-lines default-frame-alist)))
(if default
(setq menu-bar-mode (not (eq (cdr default) 0)))
(setq default-frame-alist
(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
default-frame-alist))))
;; Toggle or set the mode, according to FLAG.
(setq menu-bar-mode (if (null flag) (not menu-bar-mode)
(> (prefix-numeric-value flag) 0)))
;; Apply it to default-frame-alist.
(let ((parameter (assq 'menu-bar-lines default-frame-alist)))
(if (consp parameter)
(setcdr parameter (if menu-bar-mode 1 0))
(setq default-frame-alist
(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
default-frame-alist))))
;; Apply it to existing frames.
(let ((frames (frame-list)))
(while frames
(let ((height (cdr (assq 'height (frame-parameters (car frames))))))
(modify-frame-parameters (car frames)
(list (cons 'menu-bar-lines
(if menu-bar-mode 1 0))))
(modify-frame-parameters (car frames)
(list (cons 'height height))))
(setq frames (cdr frames)))))
(provide 'menu-bar)
;;; menu-bar.el ends here