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I need to write a simple program that records all the input from parallel port into a file. Data flows from industrial machine, setup is fairly simple, but I can’t find any good open source examples on parallel port reading for Windows.
Do you know a software that does this (and lets me learn how to do it myself), or is there any guideline for parallel port programming on XP?
Thanks.
Windows doesn’t have services for low-level access to the parallel port signals. I am afraid you have to write a device driver (kernel programming…). The good news is that many people have already done it, example here (NOTE: I haven’t tested this particular product).
Regards