Function: frame-configuration-p
frame-configuration-p is a byte-compiled function defined in
subr.el.gz.
Signature
(frame-configuration-p OBJECT)
Documentation
Return non-nil if OBJECT seems to be a frame configuration.
Any list whose car is frame-configuration is assumed to be a frame
configuration.
Source Code
;; Defined in /usr/src/emacs/lisp/subr.el.gz
;; We put this here instead of in frame.el so that it's defined even on
;; systems where frame.el isn't loaded.
(defun frame-configuration-p (object)
"Return non-nil if OBJECT seems to be a frame configuration.
Any list whose car is `frame-configuration' is assumed to be a frame
configuration."
(declare (pure t) (side-effect-free error-free))
(and (consp object)
(eq (car object) 'frame-configuration)))