Function: frameset-frame-id

frameset-frame-id is an autoloaded and byte-compiled function defined in frameset.el.gz.

Signature

(frameset-frame-id FRAME)

Documentation

Return the frame id of FRAME, if it has one; else, return nil.

A frame id is a string that uniquely identifies a frame. It is persistent across frameset-save / frameset-restore invocations, and once assigned is never changed unless the same frame is duplicated (via frameset-restore), in which case the newest frame keeps the id and the old frame's is set to nil.

Source Code

;; Defined in /usr/src/emacs/lisp/frameset.el.gz
;;;###autoload
(defun frameset-frame-id (frame)
  "Return the frame id of FRAME, if it has one; else, return nil.
A frame id is a string that uniquely identifies a frame.
It is persistent across `frameset-save' / `frameset-restore'
invocations, and once assigned is never changed unless the same
frame is duplicated (via `frameset-restore'), in which case the
newest frame keeps the id and the old frame's is set to nil."
  (frame-parameter frame 'frameset--id))