bug#74876: 31.0.50; Force fringe refresh / force-window-update not affecting fringes

[Michal Nazarewicz <mina86@mina86.com>]

On Wed, Jan 01 2025, Eli Zaretskii wrote:
>> From: Michal Nazarewicz <mina86@mina86.com>
>> Cc: 74876@debbugs.gnu.org
>> Date: Wed, 01 Jan 2025 19:14:40 +0100
>> 
>> On Tue, Dec 17 2024, Eli Zaretskii wrote:
>> > You have: declare this feature impossible to implement in a reasonable
>> > way, given the restrictions of the current display engine design and
>> > implementation.
>> >
>> > At the very least, I hope you will document this for the users, so
>> > they are not surprised.
>> 
>> pulse.el forces 10 refreshes every 30 ms.  If that’s acceptable for
>> package which is part of Emacs, a single refresh when people switch
>> windows is good enough for a third-party package.
>
> pulse.el typically refreshes only a small portion of a window, and
> therefore redisplay will only redraw that portion.  So this doesn't
> normally lead to flickering (unless you pulse a large portion of the
> window).

pulse.el changes face which forces refresh just as I described in this
thread.  If you’re saying Emacs is smart enough to notice that only
small portion of the window needs refreshing, this should also be true
in my case where only fringes need refreshing.

-- 
Best regards
ミハウ “𝓶𝓲𝓷𝓪86” ナザレヴイツ
«If at first you don’t succeed, give up skydiving»