PortHandle,
NISERIAL_SET_RS232_MODE,
(LPVOID)&l_TransceiverMode,
sizeof(l_TransceiverMode),
(LPVOID)NULL,
0,
(LPDWORD)&l_ByteCount,
NULL
);
4. ToretrievethecurrentRS-232transceivermode,youcanuse
NISERIAL_GET_RS232_MODEandDeviceIoControlwiththe
followingcode:
TRANSCEIVER_MODEl_TransceiverMode;
DWORDl_ByteCount;
DeviceIoControl(
PortHandle,
NISERIAL_GET_RS232_MODE,
(LPVOID)NULL,
0,
(LPVOID)&l_TransceiverMode,
sizeof(l_TransceiverMode),
(LPDWORD)&l_ByteCount,
NULL
);