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How can I send output to LPT in C#.
I use SerialPort class. I set port name to “LPT1” and I’m getting this error.
The given port name does not start with COM/com or does not resolve to a valid serial port.
Parameter name: portName
What to do?
You can’t use SerialPort to access a Parallel Port. This will require P/Invoke to
inpout32.dllto access. For details, see this tutorial.