GNU bug report logs - #22164
25.0.50; Turning off blinking cursor mode makes menu tooltips behave erratically

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From: martin rudalics <rudalics <at> gmx.at>
To: 22164 <at> debbugs.gnu.org
Subject: bug#22164: 25.0.50; Turning off blinking cursor mode makes menu tooltips behave erratically
Date: Sun, 13 Dec 2015 18:56:27 +0100

With emacs -Q evaluate (blink-cursor-mode -1).  Click the "File" entry
on the menu bar.  When I now move the mouse from one menu entry to
another it takes approximately 8 seconds until the tooltip is removed
from the previous entry and shown at the current one.

Reproducible at least since Emacs 24.2 and likely a Windows-only bug.
It might be related to this part of ‘blink-cursor-timer-function’

  ;; Suspend counting blinks when the w32 menu-bar menu is displayed,
  ;; since otherwise menu tooltips will behave erratically.
  (or (and (fboundp 'w32--menu-bar-in-use)
	   (w32--menu-bar-in-use))
      (setq blink-cursor-blinks-done (1+ blink-cursor-blinks-done)))

but I cannot imagine how that can have any effect when cursor blinking
is turned off.

In GNU Emacs 25.0.50.1 (i686-pc-mingw32)
 of 2015-12-12
Repository revision: 06f00d39ff73e0c6c87ffb09ef3d67e8d3446b01
Windowing system distributor 'Microsoft Corp.', version 5.1.2600

martin

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