Int 33/AX=0010h

AX = 0010h
CX,DX = X,Y coordinates of upper left corner
SI,DI = X,Y coordinates of lower right corner

Note: Mouse cursor is hidden in the specified region, and needs to be explicitly turned on again

See Also: AX=0001h - AX=0002h - AX=0007h - AX=0010h"Geniu

Category: Mouse/Pointing Device - Int 33h - M