Variable: mouse-scroll-min-lines

mouse-scroll-min-lines is a customizable variable defined in mouse.el.gz.

Value

1

Documentation

The minimum number of lines scrolled by dragging mouse out of window.

Moving the mouse out the top or bottom edge of the window begins scrolling repeatedly. The number of lines scrolled per repetition is normally equal to the number of lines beyond the window edge that the mouse has moved. However, it always scrolls at least the number of lines specified by this variable.

View in manual

Probably introduced at or before Emacs version 19.30.

Source Code

;; Defined in /usr/src/emacs/lisp/mouse.el.gz
(defcustom mouse-scroll-min-lines 1
  "The minimum number of lines scrolled by dragging mouse out of window.
Moving the mouse out the top or bottom edge of the window begins
scrolling repeatedly.  The number of lines scrolled per repetition
is normally equal to the number of lines beyond the window edge that
the mouse has moved.  However, it always scrolls at least the number
of lines specified by this variable."
  :type 'integer)