I am trying to figure out how to change the time that is used to
determine a “phantom release” in Photon has occurred versus a real
click. Would I use the rel -T option for Input to change this? The
default is 100 mickeys (what is a mickey other than a Mouse?). Is
this 1/100 of a second or what? The answer of that may answer my
question, but basically, we have a touchscreen and often when you
press the button you see it press and release but the activate callback
is not called. That seems to be related to the “phantom release” of
Photon and I can’t find anymore info on it.
Rob Davidson
The phantom release is not controlled by Input. On some touchscreens
the real release event is generated by the driver, after an absense of
input (in this type of touchscreen holding the finger in one place will
produce a continuous stream of events, so no events means that the
screen is no longer being touched). Most touchscreens give a
“finger-up” or “pen-up” event, and this is emitted immediately into
Photon event space. On touchscreens for which the driver is required to
generate a “finger-up” event, it may be tunable (it is for the
intellitouch for instance).
The Photon “phantom event” is generated by photon, and I think it’s main
(sole?) purpose is to insure the release event gets to the region from
which the press event originated (since the region in which the real
release occurs can be a different region than where the press occured).
I don’t believe that the Phantom release is in anyway time based.
btw: I think a Mickey is a function of motion/unit time (I’m not sure
exactly what, but it doesn’t apply to you anyway since this is only for
relative coordinate pointing devices - i.e. mice).
-----Original Message-----
From: Rob Davidson [mailto:rdavidson@SoftwareRemodeling.com]
Posted At: Monday, April 23, 2001 2:33 PM
Posted To: photon
Conversation: Input rel -T option for mouse clicks within Photon
Subject: Input rel -T option for mouse clicks within Photon
I am trying to figure out how to change the time that is used to
determine a “phantom release” in Photon has occurred versus a real
click. Would I use the rel -T option for Input to change this? The
default is 100 mickeys (what is a mickey other than a Mouse?). Is
this 1/100 of a second or what? The answer of that may answer my
question, but basically, we have a touchscreen and often when you
press the button you see it press and release but the activate callback
is not called. That seems to be related to the “phantom release” of
Photon and I can’t find anymore info on it.
Rob Davidson