From: "Drew Adams" <drew.adams@oracle.com>
To: "'Peter Dyballa'" <Peter_Dyballa@web.de>
Cc: 'Sebastien Vauban' <wxhgmqzgwmuf@spammotel.com>, help-gnu-emacs@gnu.org
Subject: RE: Using the same custom file in two different OSes
Date: Thu, 17 Jan 2013 08:01:17 -0800 [thread overview]
Message-ID: <AAF59319942C4E25941B3EA19EA92F94@us.oracle.com> (raw)
In-Reply-To: <4A918D61-83A2-4C60-A35C-9EA5CCF24090@Web.DE>
> >>> (if (display-graphic-p) ...
> >>
> >> FYI, I'm using: (if window-system ...
> >> but that comes down to pretty much the same thing, it seems.
> >
> > `window-system' has the advantage that it works with older
> > Emacs releases.
> >
> > But `display-graphic-p' is what is recommended for recent releases.
> > From the doc string of `window-system':
> >
> > "Use of this function as a predicate is deprecated. Instead,
^^^^^^^^^^^^^^
> > use `display-graphic-p' or any of the other `display-*-p'
> > predicates which report frame's specific UI-related capabilities."
>
> This looks more like a regression than progress.
Feel free to report it: `M-x report-emacs-bug'.
I only relayed the message, as I understand it.
> The variable `window-system' at least returns a value
> indicating on which kind of graphic display this instance of
> GNU Emacs runs: x, w32, ns, pc, mac. These variants still
> need different set-ups. And it also makes sense to decorate
> the instance running in different colours to see at once in
> which variant I'm in.
>
> In future one might need to parse the text returned by
> `emacs-version' to find this information - and might fail at
> first because being build for a graphic display does not
> exclude its use without a windowing system. So one would need
> a second test.
AFAIK, `window-system' is _not_ deprecated. It is its "use as a predicate" that
is deprecated.
IOW, Emacs Dev suggests that people use `display-graphic-p', not
`window-system', to determine whether the current Emacs session supports a
graphic display.
Again though, that's just my understanding, and I'm just relaying what I have
understood.
next prev parent reply other threads:[~2013-01-17 16:01 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-13 22:00 Using the same custom file in two different OSes Dani Moncayo
2013-01-13 22:18 ` Drew Adams
2013-01-14 18:46 ` Dani Moncayo
2013-01-14 19:13 ` Drew Adams
2013-01-14 19:42 ` Dani Moncayo
2013-01-14 21:55 ` Peter Dyballa
2013-01-14 23:00 ` Dani Moncayo
2013-01-15 8:25 ` Didier Verna
2013-01-15 8:42 ` Dani Moncayo
2013-01-14 22:05 ` Drew Adams
2013-01-16 21:03 ` Dani Moncayo
[not found] ` <mailman.17633.1358371586.855.help-gnu-emacs@gnu.org>
2013-01-17 8:43 ` Sebastien Vauban
2013-01-17 14:19 ` Drew Adams
2013-01-17 14:38 ` Peter Dyballa
2013-01-17 15:22 ` Dani Moncayo
2013-01-17 16:38 ` Eli Zaretskii
2013-01-17 16:01 ` Drew Adams [this message]
2013-01-17 16:33 ` Eli Zaretskii
2013-01-17 16:32 ` Eli Zaretskii
2013-01-17 16:57 ` Drew Adams
2013-01-17 17:48 ` Eli Zaretskii
2013-01-17 18:15 ` Drew Adams
2013-01-17 18:44 ` Eli Zaretskii
2013-01-15 13:27 ` Stefan Monnier
2013-01-15 20:27 ` Dani Moncayo
[not found] ` <mailman.17532.1358281671.855.help-gnu-emacs@gnu.org>
2013-01-16 8:58 ` Sebastien Vauban
2013-01-16 20:35 ` Dani Moncayo
2013-01-16 12:59 ` Jason Rumney
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