Variable: x-display-name
x-display-name is a variable defined in common-win.el.gz.
Value
nil
Documentation
The name of the window display on which Emacs was started.
On X, the display name of individual X frames is recorded in the
display frame parameter.
Source Code
;; Defined in /usr/src/emacs/lisp/term/common-win.el.gz
(defvar x-display-name nil
"The name of the window display on which Emacs was started.
On X, the display name of individual X frames is recorded in the
`display' frame parameter.")