Variable: split-height-threshold

split-height-threshold is a customizable variable defined in window.el.gz.

Value

80

Documentation

Minimum height for splitting windows sensibly.

If this is an integer, split-window-sensibly may split a window vertically only if it has at least this many lines. If this is nil, split-window-sensibly is not allowed to split a window vertically. If, however, a window is the only window on its frame, or all the other ones are dedicated, split-window-sensibly may split it vertically disregarding the value of this variable.

This variable was added, or its default value changed, in Emacs 23.1.

Probably introduced at or before Emacs version 23.1.

Source Code

;; Defined in /usr/src/emacs/lisp/window.el.gz
(defcustom split-height-threshold 80
  "Minimum height for splitting windows sensibly.
If this is an integer, `split-window-sensibly' may split a window
vertically only if it has at least this many lines.  If this is
nil, `split-window-sensibly' is not allowed to split a window
vertically.  If, however, a window is the only window on its
frame, or all the other ones are dedicated,
`split-window-sensibly' may split it vertically disregarding the
value of this variable."
  :type '(choice (const nil) (integer :tag "lines"))
  :version "23.1"
  :group 'windows)