So I'm trying to detect through Visual Basic 6.0 when a voltage change occurs on one of the pins of the serial/parallel port. The whole thing is pretty simple; no data transfer/handshaking/etc needs ...
I'm not so sure about using the serial port in C#, but with the regular old win32 api you pretty much just open the serial port like any other file specifiying "COM1" as the file name (or whatever the ...
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