Constant

Description

Value

HW_BIOS

Indicates the hardware uses a BIOS interface to communicate with the tablet.

0x00200000

HW_BUFFERZONE

If set, the driver creates a small zone around the tablet.

0x00020000

HW_CALIBRATE

If set, the tablet uses the calibration structure to calibrate all in-range pen input.

0x00010000

HW_PUSHMODEL

Instructs the virtual pen driver to report interrupt-time information to the pen driver for every pen packet that is gathered.

0x00040000

HW_SERIAL

Indicates the hardware is connected to a serial port. The virtual driver behaves as a serial device.

0x00100000

HW_TIMERMODEL

Instructs the virtual pen driver to report interrupt-time information to the pen driver when a timer tick occurs from the system timer instead of each time a pen packet is gathered. This can be used to reduce the number of ring transitions from the virtual pen driver to the pen driver.

0x00080000