I'm working on some idea connected with RS-232 interface manipulation. I can open this port, configure it, write or read data and do some other things with WinAPI. But I don't know how to control individual pins. Well I can take control of DTR and RTS lines via EscapeCommFunction function. But I need to manipulate with TxD and RxD lines ("turn" them "on" or "off", binary). Is this possible in Windows 7?
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