Variable: fit-window-to-buffer-horizontally
fit-window-to-buffer-horizontally is a customizable variable defined
in window.el.gz.
Value
nil
Documentation
Non-nil means fit-window-to-buffer can resize windows horizontally.
If this is nil, fit-window-to-buffer never resizes windows
horizontally. If this is only, it can resize windows
horizontally only. Any other value means fit-window-to-buffer
can resize windows in both dimensions.
This variable was added, or its default value changed, in Emacs 24.4.
Probably introduced at or before Emacs version 24.4.
Source Code
;; Defined in /usr/src/emacs/lisp/window.el.gz
;;; Resizing windows and frames to fit their contents exactly.
(defcustom fit-window-to-buffer-horizontally nil
"Non-nil means `fit-window-to-buffer' can resize windows horizontally.
If this is nil, `fit-window-to-buffer' never resizes windows
horizontally. If this is `only', it can resize windows
horizontally only. Any other value means `fit-window-to-buffer'
can resize windows in both dimensions."
:type 'boolean
:version "24.4"
:group 'help)