How to remove the window separator line ?

How to remove the window separator line ?

[Cezar Halmagean]

Hello,

  I want to remove the thin line that separates the windows and I am not sure what it's called or how to find that setting. Here's a screenshot of it: http://cezar.halmagean.ro/snaps/emacs.png

Thank you,
Cezar

Re: How to remove the window separator line ?

[Eli Zaretskii]

> Date: Tue, 15 Jan 2013 12:29:08 -0800 (PST)
> From: Cezar Halmagean <cezar@mixandgo.com>
> Injection-Date: Tue, 15 Jan 2013 20:29:08 +0000
> 
>   I want to remove the thin line that separates the windows and I am
>   not sure what it's called or how to find that setting.

It's called "vertical border".  I don't think you can remove it.

Re: How to remove the window separator line ?

[Stephen Berman]

On Tue, 15 Jan 2013 14:54:00 -0800 (PST) Cezar Halmagean <cezar@mixandgo.com> wrote:

> On Tuesday, January 15, 2013 11:03:21 PM UTC+2, Eli Zaretskii wrote:
>> > Date: Tue, 15 Jan 2013 12:29:08 -0800 (PST)
>> 
>> > From: Cezar Halmagean <cezar@mixandgo.com>
>> 
>> > Injection-Date: Tue, 15 Jan 2013 20:29:08 +0000
>> 
>> > 
>> 
>> >   I want to remove the thin line that separates the windows and I am
>> 
>> >   not sure what it's called or how to find that setting.
>> 
>> 
>> 
>> It's called "vertical border".  I don't think you can remove it.

Maybe you can't remove it, but from reading the Display Tables nodes in
the Elisp manual, it seems like you should be able to effectively hide
it, e.g. by making it display as a zero-width space:

(set-display-table-slot standard-display-table 
                        'vertical-border (make-glyph-code 8203))

However, this does not change the vertical border on a graphical Emacs,
only on a non-window-system display (actually, it doesn't work with
zero-width space, I guess because the codepoint is too high; it does
work with 160 (no-break space)).  This difference is not documented in
this node, which is the only place in the Elisp manual that refers to
vertical-border.  Is this a doc bug?

> Yes that's what it's called, making it the same color as the background will
> do. Thank you.
>
> For anyone else searching for this:
>
> (set-face-attribute 'vertical-border
>                     nil
>                     :foreground "#282a2e")

I tried this and found something that looks like a program bug, but
maybe it's a feature I don't understand (in which case it may be another
doc bug).  I use non-toolkit scroll bars.  When I disable scroll bars,
split the window side by side and evaluate the above sexp, the vertical
border takes on the given color; and when I now enable scroll bars
again, now they have this color (I tested with "green" so it was plain
to see).  But if I evaluate the sexp with scroll bars enabled using a
different color, this does not change the color of the scroll bars; but
if I disable scroll bars and then enable them again, now they do have
the changed color.  Is this a bug?

Steve Berman

Re: How to remove the window separator line ?

[Eli Zaretskii]

> From: Stephen Berman <stephen.berman@gmx.net>
> Cc: help-gnu-emacs@gnu.org
> Date: Wed, 16 Jan 2013 20:35:41 +0100
> 
> Maybe you can't remove it, but from reading the Display Tables nodes in
> the Elisp manual, it seems like you should be able to effectively hide
> it, e.g. by making it display as a zero-width space:
> 
> (set-display-table-slot standard-display-table 
>                         'vertical-border (make-glyph-code 8203))
> 
> However, this does not change the vertical border on a graphical Emacs,
> only on a non-window-system display (actually, it doesn't work with
> zero-width space, I guess because the codepoint is too high; it does
> work with 160 (no-break space)).  This difference is not documented in
> this node, which is the only place in the Elisp manual that refers to
> vertical-border.  Is this a doc bug?

The GUI display doesn't use the display table for the border, it draws
the border directly as a line of certain thickness.

Re: How to remove the window separator line ?

[Stephen Berman]

On Wed, 16 Jan 2013 22:27:40 +0200 Eli Zaretskii <eliz@gnu.org> wrote:

>> From: Stephen Berman <stephen.berman@gmx.net>
>> Cc: help-gnu-emacs@gnu.org
>> Date: Wed, 16 Jan 2013 20:35:41 +0100
>> 
>> Maybe you can't remove it, but from reading the Display Tables nodes in
>> the Elisp manual, it seems like you should be able to effectively hide
>> it, e.g. by making it display as a zero-width space:
>> 
>> (set-display-table-slot standard-display-table 
>>                         'vertical-border (make-glyph-code 8203))
>> 
>> However, this does not change the vertical border on a graphical Emacs,
>> only on a non-window-system display (actually, it doesn't work with
>> zero-width space, I guess because the codepoint is too high; it does
>> work with 160 (no-break space)).  This difference is not documented in
>> this node, which is the only place in the Elisp manual that refers to
>> vertical-border.  Is this a doc bug?
>
> The GUI display doesn't use the display table for the border, it draws
> the border directly as a line of certain thickness.

So I guess it is a doc bug.  (To correct what I wrote above: the above
sexp doesn't change vertical border between side-by-side windows on
non-window-system displays either; it changes just the glyph displayed
on the vertical border.  Moreover, the zero-width space codepoint (8203)
is fine, just the glyph is (obviously) invisible.)

Steve Berman

Re: How to remove the window separator line ?

[Peter Dyballa]

Am 15.01.2013 um 21:29 schrieb Cezar Halmagean:

> I want to remove the thin line that separates the windows

How do you produce that line? Which modes have you switched on? Did you check the customisation existing for these modes?

--
Greetings

  Pete

Computers are good at following instructions, but not at reading your mind.
	- D. E. Knuth, The TeXbook, Addison-Wesley 1984, 1986, 1996, p. 9

Re: How to remove the window separator line ?

[Eli Zaretskii]

> From: Peter Dyballa <Peter_Dyballa@Web.DE>
> Date: Tue, 15 Jan 2013 23:23:59 +0100
> Cc: help-gnu-emacs@gnu.org
> 
> > I want to remove the thin line that separates the windows
> 
> How do you produce that line?

It appears automatically once you disable the scroll bars.

Re: How to remove the window separator line ?

[Cezar Halmagean]

On Tuesday, January 15, 2013 11:03:21 PM UTC+2, Eli Zaretskii wrote:
> > Date: Tue, 15 Jan 2013 12:29:08 -0800 (PST)
> 
> > From: Cezar Halmagean <cezar@mixandgo.com>
> 
> > Injection-Date: Tue, 15 Jan 2013 20:29:08 +0000
> 
> > 
> 
> >   I want to remove the thin line that separates the windows and I am
> 
> >   not sure what it's called or how to find that setting.
> 
> 
> 
> It's called "vertical border".  I don't think you can remove it.

Yes that's what it's called, making it the same color as the background will do. Thank you.

For anyone else searching for this:

(set-face-attribute 'vertical-border
                    nil
                    :foreground "#282a2e")