"Multitouch" on FR ... imho should be possible to mimic

Stefan Monnier monnier at iro.umontreal.ca
Thu Mar 19 17:38:47 CET 2009

FWIW, there's another source of info that might be used: jitter.
When you have two fingers pressed, not only the reported position is
more-or-less the middle point, but it's also jittery.

So you could detect such jitter as a tell-tale of "multitouch" and then
use the jitter itself (orientation and magnitude) as an indicator of the
actual position of the fingers.  Whether it would be sufficiently
reliable to be used, I don't know.


More information about the community mailing list