Re: How to get DISPLAY of emacsclient?

[Max Nikulin]

On 27/11/2022 04:33, chad wrote:
> Have you considered just adding a server hook that opens a gui frame on 
> daemon start if there is a usable display?

The question is how to determine the display for which emacsclient is 
invoked. It is possible to create a hidden frame by e.g. calling 
`server-select-display', but it is necessary to know display.

> (Apologies if you've 
> already explored this avenue.)

Personally, I have a shell script that works for me, but I would not 
recommend it to others. It adds emacsclient option to create an x frame 
if there is no it yet.

This particular question originates from an emacs-orgmode thread. It was 
explicitly asked that emacs should not pop up hiding currently active 
maximized window of another application (or emacs should disappear 
without additional user action, in this case its behavior should be 
similar to a notification window). Another participant insisted on using 
xsel utility and a temporary file (in a way that is not safe) because 
getting X selection from emacs does not work. I started current thread 
because Ihor Radchenko asked if `org-get-x-clipboard' could be improved 
and I realized that my recipe (getenv "DISPLAY") may work incorrectly in 
some cases.