From: Lars Ingebrigtsen <larsi@gnus.org>
To: Yuuki Harano <masm+emacs@masm11.me>
Cc: emacs-devel@gnu.org
Subject: Re: Which should the display-pixel-width function return, physical pixel width or logical pixel width?
Date: Sat, 02 Jan 2021 07:04:40 +0100 [thread overview]
Message-ID: <87v9cf98nb.fsf@gnus.org> (raw)
In-Reply-To: <20210101.234418.2112625777155657071.masm@luna.pink.masm11.me> (Yuuki Harano's message of "Fri, 01 Jan 2021 23:44:18 +0900 (JST)")
Yuuki Harano <masm+emacs@masm11.me> writes:
> I'm going to add scale-factor in per-monitor information to support
> scaling. dpi-sensitive emacs lisps can extract logical pixel width,
> mm width, and scale-factor from it, and calculate dpi.
Sounds good.
> "Monitor" is a recent concenpt.
> If pgtk emacs returns logical one, then compatibility may be broken.
> If pgtk emacs returns physical one, then those emacs lisps continue to
> do strange calculation.
>
> What should the display-pixel-width function (and
> display-monitor-attributes-list) return, physical pixel width, logical
> pixel width, or implementation-dependent? The documentation of
> display-pixel-width seems to say nothing about that.
I think they should return the physical pixel width.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2021-01-02 6:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-01 14:44 Which should the display-pixel-width function return, physical pixel width or logical pixel width? Yuuki Harano
2021-01-01 21:51 ` Yuan Fu
2021-01-02 7:40 ` Yuuki Harano
2021-01-02 10:31 ` Alan Third
2021-01-02 6:04 ` Lars Ingebrigtsen [this message]
2021-01-03 8:34 ` Yuuki Harano
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