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Clarify situations where pinch events can be sent.

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* doc/lispref/commands.texi (Misc Events): Clarify the
conditions under which pinch events will be sent.
This commit is contained in:
Po Lu 2021-12-26 19:40:47 +08:00
parent deab5f413f
commit e103696024
1 changed files with 4 additions and 0 deletions
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doc/lispref/commands.texi
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@ -2100,6 +2100,10 @@ between the fingers and that distance at the start of the sequence, and
of the line connecting the fingers in this event and the direction of
that line in the last event of the same sequence.
As pinch events are only sent at the beginning or during a pinch
sequence, they do not report gestures where the user moves two fingers
on a touchpad in a rotating fashion without pinching the fingers.
All arguments after @var{position} are floating point numbers.
This event is usually sent as part of a sequence, which begins with