Touchscreen User Manual – Issue 1
Zytronic X-Y Controller (Serial and USB)
42
If this value is set to zero pen ups based on time are
disabled. This is a useful setting for controllers
working in Delta mode, that is, data is not generated
unless the x or y co-ordinates change.
Stabilization causes small movements to be ignored.
Applies a filter to produce smoother drawing.
Averaging takes the average of the last N co-
ordinates. This is a very basic approach to filtering
that can improve drawing and not affect drawing
speed.
Priority
In a multi pointer device environment this setting
indicates the priority given to the device:
Interlock:
The device can only be used if no other
device is in use (i.e. touch screen being touched) and
the time since the last use of another device exceeds
the ‘release time’ period. Release time is defined in
units of 20ms and defaults to 20ms.
Admin:
Any device currently in use is forced into a
‘pen up’ state and the device is given immediate
priority.
Defines the interlock release time, as described above.
Only shown if a pen up data packet is generated by
the device on stylus lift off. If enabled the pen up data
packet is used to invoke pen up otherwise the pen up
processing will generate a pen up event at the lift off
time threshold as described above.
The Anchor Mouse option is set if the mouse cursor is
to return to its original position after the pointer
device has been used. Normally used in multi-monitor
configurations where the cursor is to return to another
monitor.
Indicates if the device is enabled. If the device is
disabled the hardware port’s resources are available
for use by another device or process. This is a way of
freeing up the resources without having to uninstall
the driver. One example of this is where a serial to
USB converter is used and the device needs to be
‘stopped’ before it can be safely unplugged from the
system. If UPDD has a connection to the device it
cannot be ‘stopped’ until disabled by UPDD.