Bluetooth (serial) SPP using Sockets...!

If you wondered how to connect to a BT serial device using SPP over sockets... heres how!

// create your BT socket
SOCKET s = socket (AF_BTH, SOCK_STREAM, BTHPROTO_RFCOMM);

// Create the connection information, this is the RFComm protocol for SPP
SOCKADDR_BTH sa;
memset (&sa, 0, sizeof(sa));
sa.addressFamily = AF_BTH;
sa.btAddr = device;
sa.port = BT_PORT_ANY;
sa.serviceClassId = RFCOMM_PROTOCOL_UUID;
// connect...
connect (s, (SOCKADDR *)&sa, sizeof(sa))


Once connected you can use send/recieve to send over the SPP connection:

send (connectedSocket, (char*)str, len,0)
recv( connectedSocket, str, len,0)

This way you don't have to map serial ports, this was tested on Windows XP but should also work on windows CE.

It was tested printing GPS information from a TOMTOM reciever.