Using lpt1 in Windows

Paul Williams p.williams at
Wed Oct 18 03:00:21 EDT 2006

I am developing some educational software that uses a sensor that plugs 
into the parallel port. I need to be able to read and set the state of the i/o 
pins on that port. I have tried using read/write  to file lpt1 without any 
success,  can anyone point in the right direction with a snippet of code?


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