MouseDriver SUB Action Calls Interrupt 51 (33H) and passes the parameters to the proper registers. Syntax MouseDriver M0%, M1%, M2%, M3% Remarks The MouseDriver procedure uses the following arguments. M0% An integer that is placed into the AX register. M1% An integer that is placed into the BX register. M2% An integer that is placed into the CX register. M3% An integer that is placed into the DX register. Interrupt 51 provides DOS mouse services. Refer to the Microsoft Mouse Programmer's Guide for detailed information about mouse servicing routines. MouseDriver is used in MOUSE.BAS (all procedures) where access to operating system mouse routines is required. See Also. MouseBorder, MouseHide, MouseInit, MousePoll, MouseShow