>Hi all,
>How does one normally communicate with an I/O card?
>Fopen?
>Yau
Hiya Yua..
The answer is -
it depends.
IF SERIAL I/O - then use the mscomm32.ocx library for communications.

IF it is some vendor specific I/O card and not a standard serial interface- then see if the vendor has supplied a library for communications.

regards [Bill]