HP Vectra Technical Reference Manual page 71

Tab'e 4.3
GID Button ISR Event Record
AH
=
F _ISR (OOH)
DL
=
Physical device driver's vector address / 6
BX
=
Button information.
Bit Value
OFH-08H
07H
1
o
06H-OOH
Definition
Reserved
Button up
Button down
Button number (0-7)
DH
=
Data Type
ES:O
=
Pointer to Physical device driver header and Physical Describe Record.
Table 4.4
GID Motion ISR Event Record
AH
=
F_ISR (OOH)
DL
=
Physical device driver's vector address / 6
BX
=
X axis motion in raw data form.
ex
=
Y axis motion in raw data form.
DH
=
Data Type
ES:O
=
Pointer to physical device driver header and Physical Describe Record.
The button number in the Button information field (BX) denotes which button on the device is
reporting data. Of special interest is button seven (proximity indicator) which is currently used by
absolute devices to indicate that the device measurement field is active. For example, someone is
touching the touch screen or the stylus is in contact with the tablet surface.
The Data Type field (DH) contains a code representing the current type of logical GID data stored
~
in the event record. For button events this value will be T_KC_BUnON. For logical GID motion
~
events permissible types are: T_T5, T_POINTER and T_TABLET, which correspond to data
originating from V_LTOUCH, V_LPOINTER, and V_LTABLET respectively. For a complete list of
logical GID event data types see table 4.5.
62 Input System and HP-HIL