>I using debug.exe to test the status of port eg.
>
>-O 2C3 9B -Output 9B to Address 2C3
>-I 2C2 -Read data from ADD 2C2
>
>or In C
>
># Define BASE 0X2C0
>outportb(BASE,0X00)
>
>
>In VFP, how to do so.
>

The easiest way would be to create a small .DLL that will perform the operation for you in C/C++; the low-level port functions aren't available in VFP directly. be aware that direct manipulation of ports is not portable, especially in WinNT and Win2K

>
>Thank u.