Hi all,

I'm a newbie in bluetooth programming and I'm making some test in order to communicate with a bluetooth GPS receiver.

My platform is: Windows CE 6.0, .netCF2.0 (Sp2), InTheHand2.1 

The final goal is to succeed in using the SerialPort service.

Here's my code (the discovery part... works, since I can see all the devices in the range).

            bool res1 = InTheHand.Net.Bluetooth.BluetoothSecurity.PairRequest(arrayDev[listBoxDevices.SelectedIndex].DeviceAddress, "0000");
            BluetoothEndPoint btep = new BluetoothEndPoint((BluetoothAddress)address_array[listBoxDevices.SelectedIndex], InTheHand.Net.Bluetooth.BluetoothService.SerialPort);
            bc.Connect(btep);

Here's the exception I receive (at the bc.connect instruction): 

System.Net.Sockets.SocketException was unhandled
  Message="No connection could be made because the target machine actively refused it"
  ErrorCode=10061

Could it be something to the hardware I'm using? (I'm using a Trust USB-bluetooth dongle and an Hamlet GPS receiver)

many thanks in advance! 

Well that normally means that the requested service is not supported...  Can you connect to the serial port service manually, through either version of Windows' Bluetooth control-panel?

The development version includes SDP (service discovery protocol) functionality and a sample program (SdpBrowserDesktop/-PPC) that will list all the services a peer device supports.  If you run that against your GPS device does it list SerialPortProfile?  If you want to try, download the source from http://www.codeplex.com/32feet

well,

I can connect to the device throught my desktop (XP): there I'm using the same USB-dongle with a Widcomm stack driver. I can connect to the device, get the service, and communicate throught the virtual port

In windows ce, in the control panel, I can discover the device... but I don't know if I can connect to it (windows ce doesn't have a bluetooth manager like windows mobile).

PS: in the previous post I've forgotten to specify that the pair attempt seems to work fine: it returns true.
 

Now I'm going to try the sample application u've mentioned... I'll let u know!

thanks for the help!