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Removed mouse-wheel event, added wheel-up and wheel-down

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event, with a note about how to use mwheel.el to handle both these
events and mouse-4 and mouse-5 events.
This commit is contained in:
Jason Rumney 2004-10-24 21:39:41 +00:00
parent b0915a3104
commit d2fab890f4
1 changed files with 10 additions and 11 deletions
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21
lispref/commands.texi
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@ -1501,21 +1501,20 @@ This kind of event indicates that the user deiconified @var{frame} using
the window manager. Its standard definition is @code{ignore}; since the
frame has already been made visible, Emacs has no work to do.
@cindex @code{mouse-wheel} event
@item (mouse-wheel @var{position} @var{delta})
This kind of event is generated by moving a wheel on a mouse (such as
the MS Intellimouse). Its effect is typically a kind of scroll or zoom.
The element @var{delta} describes the amount and direction of the wheel
rotation. Its absolute value is the number of increments by which the
wheel was rotated. A negative @var{delta} indicates that the wheel was
rotated backwards, towards the user, and a positive @var{delta}
indicates that the wheel was rotated forward, away from the user.
@cindex @code{wheel-up} event
@cindex @code{wheel-down} event
@item (wheel-up @var{position})
@item (wheel-down @var{position})
This kind of event is generated by moving a wheel on a mouse. Its
effect is typically a kind of scroll or zoom.
The element @var{position} is a list describing the position of the
event, in the same format as used in a mouse-click event.
This kind of event is generated only on some kinds of systems.
This kind of event is generated only on some kinds of systems. On
other systems, mouse-4 and mouse-5 may be used instead. For portable
code, the variables @code{mouse-wheel-up-event} and
@code{mouse-wheel-down-event} defined in @file{mwheel.el} can be used.
@cindex @code{drag-n-drop} event
@item (drag-n-drop @var{position} @var{files})