static extern TODO BlueTooth(TODO);

Declare Function BlueTooth Lib "ipaqutil.dll" (TODO) As TODO

static extern TODO iPAQGetBlueToothRadioPresent(TODO);

Declare Function iPAQGetBlueToothRadioPresent Lib "ipaqutil.dll" (TODO) As TODO

IPAQUTIL_API BOOL iPAQGetBlueToothRadioPresent(DWORD *lpdwValue);

static extern bool iPAQGetBlueToothRadioStatus(ref int RadioStatus);

Declare Function iPAQGetBlueToothRadioStatus Lib "ipaqutil.dll" (TODO) As TODO

IPAQUTIL_API BOOL iPAQGetBlueToothRadioStatus(DWORD *lpdwValue);

static extern bool iPAQSetBlueToothRadio(ref int status);

Private Shared Function iPAQSetBlueToothRadio(ByRef dwValue As Integer) As Boolean

IPAQUTIL_API BOOL iPAQSetBlueToothRadio(DWORD *lpdwValue);

    static extern bool iPAQSetBlueToothRadio(ref int status);

    public bool BluetoothOn()

      if (iPAQSetBlueToothRadio(ref ret) == false)

static extern TODO iPAQSetBlueToothReset(TODO);

Declare Function iPAQSetBlueToothReset Lib "ipaqutil.dll" (TODO) As TODO

IPAQUTIL_API BOOL iPAQSetBlueToothReset();

public struct BluetoothDeviceInfo

        this.dwSize = (uint)Marshal.SizeOf(typeof(BluetoothDeviceInfo));

Structure BLUETOOTH_DEVICE_INFO

    private struct BLUETOOTH_DEVICE_SEARCH_PARAMS

        this.dwSize = (uint)Marshal.SizeOf(typeof(BLUETOOTH_DEVICE_SEARCH_PARAMS));

Structure BLUETOOTH_DEVICE_SEARCH_PARAMS

  private struct Bluetooth_Find_Radio_Params

             this.dwSize = (UInt32)Marshal.SizeOf(typeof(Bluetooth_Find_Radio_Params));

Structure BLUETOOTH_FIND_RADIO_PARAMS

    private struct BluetoothRadioInfo

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = BLUETOOTH_MAX_NAME_SIZE)]

        this.dwSize = (UInt32)Marshal.SizeOf(typeof(BluetoothRadioInfo));

private const int BLUETOOTH_MAX_NAME_SIZE = 248;

Structure BLUETOOTH_RADIO_INFO

private static extern IntPtr BluetoothFindFirstRadio(ref BluetoothFindRadioParams pbtfrp, out IntPtr phRadio);

Declare Function BluetoothFindFirstRadio Lib "avifil32.dll" (TODO) As TODO

    public static readonly Guid GUID_DEVCLASS_BLUETOOTH = new Guid("{0xe0cbf06c, 0xcd8b, 0x4647, {0xbb, 0x8a, 0x26, 0x3b, 0x43, 0xf0, 0xf9, 0x74}}");

    //bluetooth RFCOMM

    Bluetooth            = 0x00000041,

static extern uint BluetoothAuthenticateDeviceEx(IntPtr hwndParentIn, IntPtr hRadioIn, ref BLUETOOTH_DEVICE_INFO pbtdiInout, BLUETOOTH_OOB_DATA pbtOobData, uint authenticationRequirement);

Declare Function BluetoothAuthenticateDeviceEx Lib "irprops.dll" (TODO) As TODO

static extern uint BluetoothAuthenticateDeviceEx(IntPtr hwndParentIn, IntPtr hRadioIn, ref BLUETOOTH_DEVICE_INFO pbtdiInout, BLUETOOTH_OOB_DATA pbtOobData, uint authenticationRequirement);

Declare Function BluetoothAuthenticateDeviceEx Lib "irprops.dll" (TODO) As TODO

    [DllImportAttribute("irprops.cpl", EntryPoint="BluetoothEnableDiscovery", SetLastError=true)]

    public static extern  bool BluetoothEnableDiscovery(

    Private Shared Function BluetoothEnableDiscovery( _

See the BluetoothAPIs.h file in the platform SDK.

static extern bool BluetoothEnableIncomingConnections(IntPtr hRadio,bool fEnabled);

    Private Shared Function BluetoothEnableIncomingConnections( _

See the BluetoothAPIs.h file in the platform SDK.

private static extern uint BluetoothEnumerateInstalledServices(IntPtr hRadio, ref Bluetooth_Device_Info pbtdi, ref uint pcServices,  Guid[] pGuidServices);

Declare Function BluetoothEnumerateInstalledServices Lib "irprops.dll" (TODO) As TODO

Bluetooth_Device_Info

static extern bool BluetoothFindDeviceClose(IntPtr hFind);

    Private Shared Function BluetoothFindDeviceClose( _

Install the platform SDK for the help files and the BluetoothAPIs.h file.

static extern IntPtr BluetoothFindFirstDevice(ref BLUETOOTH_DEVICE_SEARCH_PARAMS searchParams, ref BLUETOOTH_DEVICE_INFO deviceInfo);

BLUETOOTH_DEVICE_INFO

BLUETOOTH_DEVICE_SEARCH_PARAMS

const BLUETOOTH_MAX_NAME_SIZE = 248;

    Private Shared Function BluetoothFindFirstDevice( _

    <[In]()> ByRef searchParams As BluetoothDeviceSearchParams, _

    ByRef deviceInfo As BluetoothDeviceInfo) As IntPtr

    Private Const BLUETOOTH_MAX_NAME_SIZE = 248

    Private Structure BluetoothDeviceSearchParams

    Private Structure BluetoothDeviceInfo

        Public address As BluetoothAddress

        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=BLUETOOTH_MAX_NAME_SIZE)> _

            Me.name = New String("*"c, BLUETOOTH_MAX_NAME_SIZE)

    Private Structure BluetoothAddress

See the BluetoothAPIs.h file in the platform SDK.

static extern IntPtr BluetoothFindFirstRadio(ref Bluetooth_Find_Radio_Params pbtfrp,out IntPtr phRadio );

Bluetooth_Find_Radio_Params

    Private Shared Function BluetoothFindFirstRadio( _

    <[In]()> ByRef findRadioParams As BluetoothFindRadioParams, _

    Private Structure BluetoothFindRadioParams

                Me.size = Marshal.SizeOf(GetType(BluetoothFindRadioParams))

See the BluetoothAPIs.h file in the platform SDK.

  class Bluetooth

    public Bluetooth()

        BLUETOOTH_FIND_RADIO_PARAM parameters = new BLUETOOTH_FIND_RADIO_PARAM();

        nextRadio = BluetoothFindFirstRadio(ref parameters, out firstRadio);

        //work with bluetooth

    /// The BLUETOOTH_FIND_RADIO_PARAMS structure facilitates enumerating installed Bluetooth radios.

    private struct BLUETOOTH_FIND_RADIO_PARAM

        this.dwSize = (UInt32)Marshal.SizeOf(typeof(BLUETOOTH_FIND_RADIO_PARAM));

    /// Finds the first bluetooth radio present in device manager

    /// <param name="pbtfrp">Pointer to a BLUETOOTH_FIND_RADIO_PARAMS structure</param>

    /// <returns>In addition to the handle indicated by phRadio, calling this function will also create a HBLUETOOTH_RADIO_FIND handle for use with the BluetoothFindNextRadio function.

    /// When this handle is no longer needed, it must be closed via the BluetoothFindRadioClose.

    static extern IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAM pbtfrp, out IntPtr phRadio);

static extern bool BluetoothFindNextDevice(IntPtr hFind, ref BLUETOOTH_DEVICE_INFO pbtdi);

    Private Shared Function BluetoothFindNextDevice( _

    ByRef pbtdi As BluetoothDeviceInfo) As Integer

BLUETOOTH_DEVICE_INFO

see BluetoothFindFirstDevice

First get a handle to a radio (the radio is the local bluetooth device attached to the computer)

Then get the first device (the device is a remote bluetooth device visible to the radio), you also get a hFind.

See the BluetoothAPIs.h file in the platform SDK.

static extern bool BluetoothFindNextRadio(IntPtr hFind, out IntPtr phRadio);

Declare Function BluetoothFindNextRadio Lib "irprops.dll" (TODO) As TODO

private static extern bool BluetoothFindRadioClose(ref IntPtr hFind);

    Private Shared Function BluetoothFindRadioClose(ByVal hFind As IntPtr) As Integer

See the BluetoothAPIs.h file in the platform SDK.

private static extern uint BluetoothGetDeviceInfo(IntPtr hRadio,ref BLUETOOTH_DEVICE_INFO pbtdi);

Declare Function BluetoothGetDeviceInfo Lib "irprops.dll" (TODO) As TODO

BLUETOOTH_DEVICE_INFO

private static extern UInt32 BluetoothGetRadioInfo(IntPtr hRadio, ref Bluetooth_Radio_Info pRadioInfo);

Bluetooth_Radio_Info

    Private Shared Function BluetoothGetRadioInfo( _

    ByRef pRadioInfo As BluetoothRadioInfo) As UInteger

    Private Const BLUETOOTH_MAX_NAME_SIZE = 248

    Friend Structure BluetoothRadioInfo

    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=BLUETOOTH_MAX_NAME_SIZE)> _

See the BluetoothAPIs.h file in the platform SDK.

static extern bool BluetoothIsConnectable(IntPtr hRadio);

    Private Shared Function BluetoothIsConnectable(ByVal hRadio As IntPtr) As Integer

See the BluetoothAPIs.h file in the platform SDK.

static extern bool BluetoothIsDiscoverable(IntPtr hRadio);

    Private Shared Function BluetoothIsDiscoverable(ByVal hRadio As IntPtr) As Integer

See the BluetoothAPIs.h file in the platform SDK.

private static extern uint BluetoothRemoveDevice(ref  UInt64 pAddress);

Declare Function BluetoothRemoveDevice Lib "irprops.dll" (TODO) As TODO

private static extern uint BluetoothSetServiceState(IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi, ref   Guid pGuidService, DwServiceFlags dwServiceFlags);

Declare Function BluetoothSetServiceState Lib "irprops.dll" (TODO) As TODO

BLUETOOTH_DEVICE_INFO

private static extern uint BluetoothUpdateDeviceRecord(ref BLUETOOTH_DEVICE_INFO pbtdi);

Declare Function BluetoothUpdateDeviceRecord Lib "irprops.dll" (TODO) As TODO

BLUETOOTH_DEVICE_INFO

    FILE_DEVICE_BLUETOOTH = 0x41,

    FILE_DEVICE_BLUETOOTH = &H41