Variable: mouse-drag-and-drop-region-cross-program
mouse-drag-and-drop-region-cross-program is a customizable variable
defined in mouse.el.gz.
Value
nil
Documentation
If non-nil, allow dragging text to other programs.
This variable was added, or its default value changed, in Emacs 29.1.
Probably introduced at or before Emacs version 29.1.
Source Code
;; Defined in /usr/src/emacs/lisp/mouse.el.gz
(defcustom mouse-drag-and-drop-region-cross-program nil
"If non-nil, allow dragging text to other programs."
:type 'boolean
:version "29.1")