Variable: mouse-drag-electric-col-scrolling
mouse-drag-electric-col-scrolling is a variable defined in
mouse-drag.el.gz.
Value
t
Documentation
If non-nil, mouse-drag on a long line enables truncate-lines.
Source Code
;; Defined in /usr/src/emacs/lisp/mouse-drag.el.gz
(defvar mouse-drag-electric-col-scrolling t
"If non-nil, mouse-drag on a long line enables `truncate-lines'.")