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Re: master e37eb7f: Add support for pixel wheel deltas on NS
From: |
Po Lu |
Subject: |
Re: master e37eb7f: Add support for pixel wheel deltas on NS |
Date: |
Sat, 27 Nov 2021 18:54:42 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Po Lu <luangruo@yahoo.com>
>> Cc: rpluim@gmail.com, emacs-devel@gnu.org
>> Date: Sat, 27 Nov 2021 15:14:13 +0800
>>
>> >> On a reasonably sized frame that would be 1 to 2 pixels.
>>
>> > Is this with a mouse wheel or with a touchpad? I was asking about the
>> > mouse wheel.
>>
>> This is with a mouse wheel that supports pixel values, i.e., a mouse
>> wheel that has no fixed "steps". (A mouse wheel with fixed steps would
>> however report a value of 1.0: every XInput 2 program I tried will
>> scroll the close-to-100 pixels that implies on each turn of such a
>> wheel.)
>
> OK, thanks.
>
> Btw, I'm confused by the documentation of the enhanced mouse-wheel
> events. The manual says
>
> @item (wheel-up @var{position})
> @itemx (wheel-down @var{position})
> [...]
> The event may have additional arguments after
> @var{position}. The third argument after @var{position}, if present,
> is a pair of the form @w{@code{(@var{x} . @var{y})}}, where @var{x}
> and @var{y} are the number of pixels to scroll by in each axis.
> It mentions the 3rd argument (starting from 1, I presume, given the
> format of the event shown in @item). But the code in pixel-scroll.el
> does:
It says "the third argument after @var{position}", which is the fifth
element (1-based) in the lispy event, as position is the second element
(again, one-based) of the event.
But I agree that the wording is confusing and can probably be improved
to just mention that the fifth element contains the pixel information.
Thanks.
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, (continued)
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/26
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/26
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/26
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/26
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/26
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS,
Po Lu <=
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Po Lu, 2021/11/27
- Re: master e37eb7f: Add support for pixel wheel deltas on NS, Eli Zaretskii, 2021/11/27