Re: mouse-drag-and-drop-region

[Tak Kunihiro]

Thank you for the response.

> it's time to write some documentation now ...

Here I attach draft of documentation.

diff --git a/doc/emacs/frames.texi b/doc/emacs/frames.texi
index c94d690cf7..110199304e 100644
--- a/doc/emacs/frames.texi
+++ b/doc/emacs/frames.texi
@@ -1106,6 +1106,14 @@ then pressing that modifier key when dropping the text 
will copy it
 instead of cutting it, even if you drop on the same buffer as the one
 from which the text came.
 
+If you want to cut text even when source and destination buffers
+differ, set variable
address@hidden to non-nil.
+If you do not want to see selected text in a tooltip in a graphic
+display and/or move point together with the mouse cursor during
+dragging, set @code{mouse-drag-and-drop-region-show-tooltip} and/or
address@hidden to nil.
+
 @vindex dnd-open-file-other-window
   Dropping a file normally visits it in the window you drop it on.  If
 you prefer to visit the file in a new window in such cases, customize