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From: | Didier |
Subject: | bug#49803: 27.2; Mouse wheel on MacOS is reported as mouse-4 and mouse-5, but Emacs mwheel seems to use wheel-up/wheel-down instead |
Date: | Sun, 1 Aug 2021 23:44:05 -0700 |
> From: Didier <didibus@gmail.com>
> Date: Sat, 31 Jul 2021 19:27:58 -0700
>
> I'm on a MacBook Pro with macOS Big Sur, and on both the laptop trackpad
> and with my plugged in USB mouse, the wheel or 2-finger up/down on
> trackpad, is reported to Emacs when in terminal as mouse-4 and mouse-5.
> That means that scroll doesn't work in Terminal.app or in iTerm2 on MAC,
> since mouse-4 and mouse-5 are not bound.
>
> In the GUI Mac it works, because it gets reported as wheel-up and
> wheel-down.
>
> My thought is maybe here
> https://github.com/emacs-mirror/emacs/blob/master/lisp/mwheel.el#L54
> there should be an additional check for if its running with a
> window-system or not?
I don't think I follow. The defcustoms there say:
(defcustom mouse-wheel-down-event
(if (or (featurep 'w32-win) (featurep 'ns-win))
'wheel-up
'mouse-4)
"Event used for scrolling down."
:group 'mouse
:type 'symbol
:set 'mouse-wheel-change-button)
(defcustom mouse-wheel-up-event
(if (or (featurep 'w32-win) (featurep 'ns-win))
'wheel-down
'mouse-5)
"Event used for scrolling up."
:group 'mouse
:type 'symbol
:set 'mouse-wheel-change-button)
This seems already to cater to macOS, so why isn't it working for you?
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