User`s guide

Chapter 2 Customizing Your Touchscreen Environment 37
The following buttons are common to most of the dialog boxes in the
Touchscreen Control program:
OK Accepts the currently displayed options and exits from
the dialog box.
Cancel Discards the changes made and exits from the dialog
box.
Apply Applies your changes. After using the Apply button, the
Cancel button will not reverse the changes already
applied.
In some cases, changes do not take effect until you restart
Windows NT.
Hardware Controls
Select Hardware Controls to define the serial communication (COM)
port, interrupt request (IRQ) channel, and baud rate for the
touchscreen driver.
The touchscreen is a serial input device. When you install the
touchscreen and touchscreen controller, you attach them to a serial
communication port (COM port). The touchscreen driver
communicates with the touchscreen controller (and the touchscreen)
via this COM port. Signals from the touchscreen are sent to the