Int 33H Function 08H Set vertical limits for pointer

Limits the mouse pointer display area by assigning minimum and maximum vertical (Y) coordinates for the mouse pointer.

Call with:

AX = 0008H

CX = minimum vertical (Y) coordinate

DX = maximum vertical (Y) coordinate

Returns:

Nothing

Notes:

If the minimum value is greater than the maximum value, the two values are swapped.

The mouse pointer will be moved if necessary so that it lies within the specified vertical coordinates.

See also Int 33H Function 10H, which defines an exclusion area for the mouse pointer.