I run emacs using a server and multiple clients on both, the graphical display and the terminal.
To use the same configuration files for terminal and graphical display, I used this solution.
The issue is, on starting a new emacs client, the
fullscreen function gets called on all the already running clients too, and causes a very unwanted behaviour which sometimes throws up errors too.
display-graphic-p function doc says,
(display-graphic-p &optional DISPLAY)
Return non-nil if DISPLAY is a graphic display. Graphical displays are those which are capable of displaying several frames and several different fonts at once. This is true for displays that use a window system such as X, and false for text-only terminals. DISPLAY can be a display name, a frame, or nil (meaning the selected frame's display).
I think my issue can be resolved by specifically calling the fullscreen function on the selected frame's display. So, my question is, how to obtain the name of the current display?