(event-window, event-point, mouse-coords, mouse-timestamp):
Removed.
(event-start, event-end, posn-window, posn-point, posn-col-row,
posn-timestamp): New accessors; these are defsubsts.
(mouse-delete-window, mouse-delete-other-windows,
mouse-split-window-vertically, mouse-set-point): Rewritten to use
the new accessors.
* mouse.el: Remove hack of binding down-mouse-1.
* mouse.el (mouse-movement-p): Add docstring for this.
(mouse-split-window-horizontally): New command.
Use S-mouse-2 for them.
(mouse-delete-window): Put on mode-line mouse-3.
(mouse-save-then-kill): New command, on mouse-3.
(mouse-delete-other-windows): Use @. Now on mode-line mouse-1.
(mouse-scroll-down, mouse-scroll-up): Use e, get line from event.
(mouse-scroll-move-cursor): Likewise.
(mouse-scroll-left, mouse-scroll-right): Likewise for column.
(mouse-scroll-move-cursor-horizontally): Likewise.