GNU bug report logs - #32921
emacsclient obeys Xresources even when launched with -nw

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 32921 <at> debbugs.gnu.org, jimis <at> gmx.net
Subject: bug#32921: emacsclient obeys Xresources even when launched with -nw
Date: Wed, 18 May 2022 17:00:52 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: jimis <at> gmx.net,  32921 <at> debbugs.gnu.org
> Date: Wed, 18 May 2022 15:52:21 +0200
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > So the difference is between (a) taking notice of the reverseVideo
> > resource at startup timer as opposed to (b) at frame creation time, is
> > that right?  If so, I think this might affect the use case whereby
> > someone changes the X resources after Emacs has already started, or
> > something?
> 
> Yes, it would change that behaviour...  but I think we'd want that?  If
> the user changes reverseVideo, then I think it's natural to expect
> subsequent frames to heed that.  (Not that I think that's very
> important -- people generally don't do that.)

It's a change in long-standing behavior, and someone out there is
bound to want it.

> > Maybe it would be safer to add a special frame-parameter which will
> > record the fact that some parameters came from X resources, and will
> > then refrain from applying those parameters to TTY frames?  Or maybe
> > we should have some other special construct in default-frame-alist
> > that prevents some parameters from being applied to TTY frames?
> > Because I think reverseVideo is just one example of such parameters.
> 
> Yes, a default-frame-parameters-for-window-system (or something like
> that) variable might make sense in general.  Then users could specify
> these things separately for TTY and GUI.
> 
> But are there many parameters like this?  Most of the frame parameters
> are ignored on TTY...

Many are ignored, but some are relevant:

  . foreground and background colors
  . cursor blinking
  . menuBar
  . tabBar

> > Yes, we emulate X resources using the Registry on MS-Windows (although
> > I think this is largely unknown and unused).
> 
> I see.  I wondered whether this was for using X servers under Windows,
> somehow...  (I think that existed a long time ago, at least?)

It did?  I only know about X servers used to run X programs from
remote Unix hosts.  And there's a Cygwin build of Emacs, of course,
but that runs as if on a Unix host.

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