Touching the X11
Dec 16, 2010, 21:34 (0 Talkback[s])
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"There was no easy way to make use of touch- input devices on
Linux with Qt. Up until now. On a recent meeting with other people
interested in getting touch (and here we are also talking about
touch with multiple points) in Linux/X11 during the X.org Developer
Summit and Ubuntu Developer Summit (great events!), it has been
decided to fill this gap. The new X11 protocol for delivering touch
data was made as an evolution of the XInput protocol – XInput
2.1 and the experimental server-side implementation is on its way.
Here in Qt we have decided to give it a try and recently I've added
a branch of Qt implementing parts of the specification.
"You cannot talk about touch and not show videos :p
"Right now it is still work-in-progress – both the spec is
not final, and the server-side implementation has much to do (like
grabs support and fixing well-known bugs). The Qt patch implements
only basic support for XI2.1 events — like no modality and
popups support and implements a weird case – XI2.1 events on
top of core pointer events. However for those who like living on
the bleeding edge here are the links:"