private static BluetoothRadio GetDefault()
{
BLUETOOTH_FIND_RADIO_PARAMS p = BLUETOOTH_FIND_RADIO_PARAMS.Create();
BLUETOOTH_RADIO_INFO info = BLUETOOTH_RADIO_INFO.Create();
IntPtr hRadio = IntPtr.Zero;
IntPtr findHandle = NativeMethods.BluetoothFindFirstRadio(ref p, out hRadio);
if (hRadio != IntPtr.Zero)
{
int result = NativeMethods.BluetoothGetRadioInfo(hRadio, ref info);
}
if (findHandle != IntPtr.Zero)
{
NativeMethods.BluetoothFindRadioClose(findHandle);
}
if (hRadio != IntPtr.Zero)
{
return(new BluetoothRadio(info, hRadio));
}
return(null);
}
public static bool BluetoothDisconnect(string serialNumber)
{
IntPtr radioHandle = IntPtr.Zero;
SafeFileHandle bluetoothHandle = null;
try
{
Debug.WriteLine("Attempting to disconnect bluetooth device.");
//Get and parse the mac address
byte[] macAddressBytes = new byte[8];
string[] macAddressSplit = { $"{serialNumber[0]}{serialNumber[1]}", $"{serialNumber[2]}{serialNumber[3]}", $"{serialNumber[4]}{serialNumber[5]}", $"{serialNumber[6]}{serialNumber[7]}", $"{serialNumber[8]}{serialNumber[9]}", $"{serialNumber[10]}{serialNumber[11]}" };
for (int i = 0; i < 6; i++)
{
macAddressBytes[5 - i] = Convert.ToByte(macAddressSplit[i], 16);
}
Debug.WriteLine("Disconnecting bluetooth device: " + serialNumber);
//Disconnect the device from bluetooth
BLUETOOTH_FIND_RADIO_PARAMS radioFindParams = new BLUETOOTH_FIND_RADIO_PARAMS();
radioFindParams.dwSize = Marshal.SizeOf(radioFindParams);
radioHandle = BluetoothFindFirstRadio(ref radioFindParams, out bluetoothHandle);
bool bluetoothDisconnected = false;
while (!bluetoothDisconnected)
{
bluetoothDisconnected = DeviceIoControl(bluetoothHandle, IoControlCodes.IOCTL_BTH_DISCONNECT_DEVICE, macAddressBytes, macAddressBytes.Length, null, 0, out int bytesWritten, IntPtr.Zero) && bytesWritten > 0;
if (!bluetoothDisconnected)
{
if (!BluetoothFindNextRadio(radioHandle, out bluetoothHandle))
{
bluetoothDisconnected = true;
}
}
}
Debug.WriteLine("Succesfully disconnected bluetooth: " + bluetoothDisconnected);
return(bluetoothDisconnected);
}
catch (Exception ex)
{
Debug.WriteLine("Failed disconnecting bluetooth: " + ex.Message);
return(false);
}
finally
{
if (radioHandle != IntPtr.Zero)
{
BluetoothFindRadioClose(radioHandle);
}
if (bluetoothHandle != null)
{
bluetoothHandle.Dispose();
}
}
}
public static BLUETOOTH_ADDRESS?GetLocalBluetoothMacAddress()
{
IntPtr radioHandle = IntPtr.Zero;
SafeFileHandle bluetoothHandle = null;
try
{
BLUETOOTH_FIND_RADIO_PARAMS radioFindParams = new BLUETOOTH_FIND_RADIO_PARAMS();
radioFindParams.dwSize = Marshal.SizeOf(radioFindParams);
radioHandle = BluetoothFindFirstRadio(ref radioFindParams, out bluetoothHandle);
if (radioHandle == IntPtr.Zero)
{
Debug.WriteLine("No bluetooth radio found to get mac address for.");
return(null);
}
BLUETOOTH_RADIO_INFO radioInfo = new BLUETOOTH_RADIO_INFO();
radioInfo.dwSize = Marshal.SizeOf(radioInfo);
if (BluetoothGetRadioInfo(radioHandle, ref radioInfo))
{
Debug.WriteLine("Bluetooth local mac address: " + radioInfo.address.byte1 + ":" + radioInfo.address.byte2 + ":" + radioInfo.address.byte3 + ":" + radioInfo.address.byte4 + ":" + radioInfo.address.byte5 + ":" + radioInfo.address.byte6);
return(radioInfo.address);
}
else
{
return(null);
}
}
catch (Exception ex)
{
Debug.WriteLine("Failed to get local bluetooth mac address: " + ex.Message);
return(null);
}
finally
{
if (radioHandle != IntPtr.Zero)
{
BluetoothFindRadioClose(radioHandle);
}
if (bluetoothHandle != null)
{
bluetoothHandle.Dispose();
}
}
}
/// <summary>
/// コンピュータのBluetoothデバイスを取得します。
/// </summary>
private unsafe void radio_search()
{
IntPtr hrfind;
var param = new BLUETOOTH_FIND_RADIO_PARAMS();
param.dwSize = (UInt32)Marshal.SizeOf(param);
if ((hrfind = MyBluetoothFindFirstRadio(ref param, out hradio)) != IntPtr.Zero)
{
rinfo.dwSize = (UInt32)Marshal.SizeOf(rinfo);
MyBluetoothGetRadioInfo(hradio, ref rinfo);
}
else
{
throw new Exception("no bluetooth module");
}
MyBluetoothFindRadioClose(hrfind);
}
/// <summary>
/// Instruct host radio to disconnect a given remote device.
/// </summary>
/// <param name="device">The MAC address of the remote device.</param>
public static void DisconnectRemoteDevice(PhysicalAddress device)
{
var radioParams = new BLUETOOTH_FIND_RADIO_PARAMS();
radioParams.Init();
var findHandle = BluetoothFindFirstRadio(ref radioParams, out var radioHandle);
if (findHandle == IntPtr.Zero)
{
return;
}
var payloadSize = Marshal.SizeOf <ulong>();
var payload = Marshal.AllocHGlobal(payloadSize);
var raw = new byte[] { 0x00, 0x00 }.Concat(device.GetAddressBytes()).Reverse().ToArray();
var value = (long)BitConverter.ToUInt64(raw, 0);
Marshal.WriteInt64(payload, value);
try
{
using (var safeHandle = new Kernel32.SafeObjectHandle(radioHandle))
{
Kernel32.DeviceIoControl(
safeHandle,
unchecked ((int)IOCTL_BTH_DISCONNECT_DEVICE),
payload,
payloadSize,
IntPtr.Zero,
0,
out _,
IntPtr.Zero
);
}
}
finally
{
Marshal.FreeHGlobal(payload);
}
BluetoothFindRadioClose(findHandle);
}
public bool DisconnectBT()
{
if (MACAddr != null)
{
Console.WriteLine("Trying to disonnect BT device");
IntPtr btHandle = IntPtr.Zero;
int IOCTL_BTH_DISCONNECT_DEVICE = 0x41000c;
byte[] btAddr = new byte[8];
string[] sbytes = MACAddr.Split(':');
for (int i = 0; i < 6; i++)
{
//parse hex byte in reverse order
btAddr[5 - i] = Convert.ToByte(sbytes[i], 16);
}
long lbtAddr = BitConverter.ToInt64(btAddr, 0);
BLUETOOTH_FIND_RADIO_PARAMS p = new BLUETOOTH_FIND_RADIO_PARAMS();
p.dwSize = Marshal.SizeOf(typeof(BLUETOOTH_FIND_RADIO_PARAMS));
IntPtr searchHandle = BluetoothFindFirstRadio(ref p, ref btHandle);
int bytesReturned = 0;
bool success = false;
while (!success && btHandle != IntPtr.Zero)
{
success = DeviceIoControl(btHandle, IOCTL_BTH_DISCONNECT_DEVICE, ref lbtAddr, 8, IntPtr.Zero, 0, ref bytesReturned, IntPtr.Zero);
CloseHandle(btHandle);
if (!success)
{
if (!BluetoothFindNextRadio(searchHandle, ref btHandle))
{
btHandle = IntPtr.Zero;
}
}
}
BluetoothFindRadioClose(searchHandle);
Console.WriteLine("Disconnect successul: " + success);
return(success);
}
return(false);
}
private static void GetAllRadios(List <BluetoothRadio> radios)
{
BLUETOOTH_FIND_RADIO_PARAMS p = BLUETOOTH_FIND_RADIO_PARAMS.Create();
BLUETOOTH_RADIO_INFO info = BLUETOOTH_RADIO_INFO.Create();
IntPtr hRadio = IntPtr.Zero;
IntPtr findHandle = NativeMethods.BluetoothFindFirstRadio(ref p, out hRadio);
do
{
if (hRadio != IntPtr.Zero)
{
int result = NativeMethods.BluetoothGetRadioInfo(hRadio, ref info);
radios.Add(new BluetoothRadio(info, hRadio));
}
}while (NativeMethods.BluetoothFindNextRadio(findHandle, out hRadio));
if (findHandle != IntPtr.Zero)
{
NativeMethods.BluetoothFindRadioClose(findHandle);
}
}
private static unsafe void radio_search()
{
IntPtr hrfind;
BLUETOOTH_FIND_RADIO_PARAMS param = new BLUETOOTH_FIND_RADIO_PARAMS();
param.dwSize = (UInt32)Marshal.SizeOf(param);
if ((hrfind = MyBluetoothFindFirstRadio(ref param, out hradio)) != IntPtr.Zero)
{
rinfo.dwSize = (UInt32)Marshal.SizeOf(rinfo);
MyBluetoothGetRadioInfo(hradio, ref rinfo);
fixed(byte *addrbyte = rinfo.address.rgBytes)
{
Console.WriteLine("bluetooth host = {5:X02}:{4:X02}:{3:X02}:{2:X02}:{1:X02}:{0:X02}",
addrbyte[0], addrbyte[1], addrbyte[2], addrbyte[3], addrbyte[4], addrbyte[5]);
}
}
else
{
Console.WriteLine("no bluetooth module");
}
MyBluetoothFindRadioClose(hrfind);
}
public static extern IntPtr BluetoothFindFirstRadio(BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, ref IntPtr phRadio);
private extern static IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, ref IntPtr phRadio);
public static extern bool BluetoothFindNextRadio(
ref BLUETOOTH_FIND_RADIO_PARAMS hFind,
out IntPtr phRadio);
internal extern static IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, ref IntPtr phRadio);
public static extern IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pBtRadioParam, out SafeFileHandle phRadio);
public bool DisconnectBT()
{
if (MACAddr != null)
{
Console.WriteLine("Trying to disonnect BT device");
IntPtr btHandle = IntPtr.Zero;
int IOCTL_BTH_DISCONNECT_DEVICE = 0x41000c;
byte[] btAddr = new byte[8];
string[] sbytes = MACAddr.Split(':');
for (int i = 0; i < 6; i++)
{
//parse hex byte in reverse order
btAddr[5 - i] = Convert.ToByte(sbytes[i], 16);
}
long lbtAddr = BitConverter.ToInt64(btAddr, 0);
BLUETOOTH_FIND_RADIO_PARAMS p = new BLUETOOTH_FIND_RADIO_PARAMS();
p.dwSize = Marshal.SizeOf(typeof(BLUETOOTH_FIND_RADIO_PARAMS));
IntPtr searchHandle = BluetoothFindFirstRadio(ref p, ref btHandle);
int bytesReturned = 0;
bool success = false;
while (!success && btHandle != IntPtr.Zero)
{
success = DeviceIoControl(btHandle, IOCTL_BTH_DISCONNECT_DEVICE, ref lbtAddr, 8, IntPtr.Zero, 0, ref bytesReturned, IntPtr.Zero);
CloseHandle(btHandle);
if (!success)
if (!BluetoothFindNextRadio(searchHandle, ref btHandle))
btHandle = IntPtr.Zero;
}
BluetoothFindRadioClose(searchHandle);
Console.WriteLine("Disconnect successul: "+success);
return success;
}
return false;
}
BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, out IntPtr phRadio);
internal static extern IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, ref IntPtr phRadio);
public extern static IntPtr MyBluetoothFindFirstRadio(
ref BLUETOOTH_FIND_RADIO_PARAMS btfrp,
out IntPtr hRadio
);
public static extern IntPtr BluetoothFindFirstRadio(
ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp,
out IntPtr phRadio);
