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From: done@nexus.sorostm.ro (Dan Nicolaescu)
To: voelker@cs.washington.edu
Subject: redisplay?? or menu bug in emacs-19.34
Date: Sat, 12 Oct 1996 15:46:52 +0200 (GMT)

Hi Geoff!

Here is the problem:
emacs-version "GNU Emacs 19.34.1 (i386-*-win954.0) of Tue Aug 27 1996 on DONE"

_______bug.el_______________
(defun my-truncate ()
  (interactive)
  (setq truncate-lines (not truncate-lines))
  (auto-show-mode (if truncate-lines 1 -1))
  )

(defun my-truncate-hook ()
   (define-key c++-mode-map [menu-bar c my-truncate]
     '("Toggle tuncate" . my-truncate))
   (remove-hook 'c-mode-common-hook 'ins-uncomment-c-hook))

(add-hook 'c-mode-common-hook 'my-truncate-hook)
_________end of bug.el_______________________

Do:
emacs -no-site-file -no-init-file -load bug.el

C-x C-f A_C++_FILE_with_long_lines.cpp

With the mouse select the "Toggle truncate" menu item from the C++ menu entry.

At first nothing happens, but if you press C-v then the buffer is redisplayed correctly
(ie the lines are truncated)

Note that if you do M-x my-truncate RET the buffer is imediately displayed correctly.

I have sent you a bug report at the end of August about another bug menus, related
with Simon Marshall's lazy-lock and flashparen.el, did you do anything about that?
Or should I send it again?

Best wishes,

	Dan