Function: frame-hide-title-bar-when-maximized
frame-hide-title-bar-when-maximized is a byte-compiled function
defined in frame.el.gz.
Signature
(frame-hide-title-bar-when-maximized FRAME)
Documentation
Hide the title bar if FRAME is maximized.
If FRAME isn't maximized, show the title bar.
Source Code
;; Defined in /usr/src/emacs/lisp/frame.el.gz
(defun frame-hide-title-bar-when-maximized (frame)
"Hide the title bar if FRAME is maximized.
If FRAME isn't maximized, show the title bar."
(set-frame-parameter
frame 'undecorated
(eq (alist-get 'fullscreen (frame-parameters frame)) 'maximized)))