Cannot run emacsclient in GUI

Cannot run emacsclient in GUI

[Ramón Lorenzo Panadés-Barrueta]

Hello everyone,

I have been trying to configure Emacs to have a transparent background when
used in the terminal, and specific background color when used in GUI. For
this I have defined the following hook:

(defun on-after-init ()
  "Make transparent background only for terminal."
  (if (display-graphic-p)
      (progn (message "XWINDOW")
         (set-face-background 'default "#292b2e"))
    (progn (message "TERMINAL")
       (set-face-background 'default "unspecified-bg"))))

(add-hook 'window-setup-hook 'on-after-init)

The above happens to work perfectly for emacs, but not for emacsclient,
which yield the following error:

$ emacsclient -c
Waiting for Emacs...
*ERROR*: Undefined color: "unspecified-bg"

On the other hand emacsclient -nw -c, works as expected. Could anyone
please give me some hints on how to solve this issue?

Thanks in advance.

Re: Cannot run emacsclient in GUI

[Eli Zaretskii]

> From: Ramón Lorenzo Panadés-Barrueta
>  <rpana92@gmail.com>
> Date: Wed, 4 Nov 2020 10:41:31 +0100
> 
> (defun on-after-init ()
>   "Make transparent background only for terminal."
>   (if (display-graphic-p)
>       (progn (message "XWINDOW")
>          (set-face-background 'default "#292b2e"))
>     (progn (message "TERMINAL")
>        (set-face-background 'default "unspecified-bg"))))
> 
> (add-hook 'window-setup-hook 'on-after-init)
> 
> The above happens to work perfectly for emacs, but not for emacsclient,
> which yield the following error:
> 
> $ emacsclient -c
> Waiting for Emacs...
> *ERROR*: Undefined color: "unspecified-bg"
> 
> On the other hand emacsclient -nw -c, works as expected. Could anyone
> please give me some hints on how to solve this issue?

unspecified-bg is meaningless for GUI frames, that's why you get the
error.  Try this instead:

   (face-spec-reset-face 'default)

Re: Cannot run emacsclient in GUI

[Ergus]

Hi Eli:

I am interested in this question.

What's the right way to add a hook like this for emacsclient only?

I mean; does the emacsclient defines a variable to condition
window-setup-hooks? Something like (if emacsclient ...)? or are there
any emacsclient-hook?

The elisp manual about emacsclient specifics is not very explicit IMO.

On Wed, Nov 04, 2020 at 05:45:33PM +0200, Eli Zaretskii wrote:
>> From: Ram�n Lorenzo Panad�s-Barrueta
>>  <rpana92@gmail.com>
>> Date: Wed, 4 Nov 2020 10:41:31 +0100
>>
>> (defun on-after-init ()
>>   "Make transparent background only for terminal."
>>   (if (display-graphic-p)
>>       (progn (message "XWINDOW")
>>          (set-face-background 'default "#292b2e"))
>>     (progn (message "TERMINAL")
>>        (set-face-background 'default "unspecified-bg"))))
>>
>> (add-hook 'window-setup-hook 'on-after-init)
>>
>> The above happens to work perfectly for emacs, but not for emacsclient,
>> which yield the following error:
>>
>> $ emacsclient -c
>> Waiting for Emacs...
>> *ERROR*: Undefined color: "unspecified-bg"
>>
>> On the other hand emacsclient -nw -c, works as expected. Could anyone
>> please give me some hints on how to solve this issue?
>
>unspecified-bg is meaningless for GUI frames, that's why you get the
>error.  Try this instead:
>
>   (face-spec-reset-face 'default)
>

Re: Cannot run emacsclient in GUI

[Eli Zaretskii]

> Date: Wed, 4 Nov 2020 17:19:35 +0100
> From: Ergus <spacibba@aol.com>
> Cc: help-gnu-emacs@gnu.org
> 
> I am interested in this question.
> 
> What's the right way to add a hook like this for emacsclient only?
> 
> I mean; does the emacsclient defines a variable to condition
> window-setup-hooks? Something like (if emacsclient ...)? or are there
> any emacsclient-hook?

Your question is only tangentially relevant to the issue in this
thread.  I think you want server-after-make-frame-hook.

Re: Cannot run emacsclient in GUI

[Robert Pluim]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Wed, 4 Nov 2020 17:19:35 +0100
>> From: Ergus <spacibba@aol.com>
>> Cc: help-gnu-emacs@gnu.org
>> 
>> I am interested in this question.
>> 
>> What's the right way to add a hook like this for emacsclient only?
>> 
>> I mean; does the emacsclient defines a variable to condition
>> window-setup-hooks? Something like (if emacsclient ...)? or are there
>> any emacsclient-hook?
>
> Your question is only tangentially relevant to the issue in this
> thread.  I think you want server-after-make-frame-hook.

Although if you want faces to have different attributes based on
whether youʼre using a gui or a tty frame, you can use the (type tty)
selector in the value.

Robert