HP Vectra Technical Reference Manual page 218

On Exit: None
Registers Altered: None
F33_ENABLE_LIGHT (AX
=
OOODH)
This function is not currently supported.
F33_DISABLE_LIGHT
(AX = OOOEH)
This function is not currently supported.
F33_RA
TIO (AX
=
OOOFH)
This function sets the sensitivity of the mouse movement. Logical mouse movement, in pixels,
corresponds to an amount of actual physical device movement, in mickies. This ratio of logical to
physical movement specifies the number of pixels to move for some number of mickies. This
function allows you to change the ratio to any value in the range 1 to 32767.
,.. On Entry: AX
=
F33_RATIO (OOOFH)
ex
=
mickies to pixels ratio for X axis
DX
=
mickies to pixels ratio for Y axis
On Exit: None
Registers Altered: None
This function defines an area on the screen which is considered a fast update area. If the cursor
is within this area, then the cursor is removed from the screen, and the area can be quickly
updated. If the cursor is not within the specified area, then it is not removed from the screen.
After a call to this function is made, a call to F33_ENABLE must always be made to turn the
cursor back on. If the upper and lower coordinates are entered in reverse order, the values are
swapped.
On Entry: AX
=
F33_eOND_OFF (001 OH)
ex
=
upper x screen coordinate (closest to (0,0))
DX
=
upper y screen coordinate
SI
=
lower x screen coordinate (farthest from (0,0))
DI
=
lower y screen coordinate
Mouse 209