HP Vectra Technical Reference Manual page 80

On Exit: AH
=
Return Status Code
Registers Altered: AX, BP, DS
Related Functions: SF_CREATE_EVENT, SF_EVENT_OFF
This subfunction disables the call to the touch screen event routine
On Entry: AH
=
F_la_CONTROL (04H)
AL
=
SF_EVENT_OFF (OCH)
BP
=
V_LTOUCH (OOC6H)
On Exit: AH
=
Return Status Code
Registers Altered: AX, BP, DS
SF_CLIPPING_ON (AX
=
040EH)
This subfunction enables logical device clipping. Physical device motion will be scaled to logical
space and will be clipped to avoid overflow or underflow. Clipping is activated for both absolute
and relative motion.
When there is a relative device mapped to this device driver, clipping works the best. It will make
sure that the new position always falls within the logical space.
On Entry: AH
=
F_la_CONTROL (04H)
AL
=
SF_CLIPPING_ON (OEH)
BP
=
V_LTOUCH (OOC6H)
On Exit: AH
=
Return Status Code
Registers Altered: AX, BP, DS
~
SF_CLIPPING OFF (AX
=
0410H)
This subfunction disables logical device clipping. Physical device motion will be scaled to logical
space, but overflow or underflow may occur.
Input System and HP-HIL 71