GNU bug report logs - #40278
Flickering in Windows 10 (not double buffered)

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From: Nicolas Bértolo <nicolasbertolo <at> gmail.com>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 40278 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>, Noam Postavsky <npostavs <at> gmail.com>
Subject: bug#40278: 27.0.90; Flickering in Windows 10
Date: Wed, 1 Apr 2020 17:39:06 -0300

>  From what Noam described the flickering could be due to the tool bar.
> What happens when you write
>
> (defun open-test ()
>    (display-buffer-in-child-frame
>     (get-buffer-create "test child-frame")
>     '((child-frame-parameters . ((tool-bar-lines . 0)
>                                 (width . 20)
>                                  (height . 10)
>                                  (top . 200)
>                                  (left . 100))))))
>
> instead?

No difference here.

> At any rate, if I've understood the responses from Eli, it sounds like
> there isn't any bug here, just that we haven't implemented double
> buffering for Windows.

This may be the reason indeed.

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