public static async Task <StreamSocket> Connect(BluetoothDevice bluetoothDevice)
{
Check.IsNull(bluetoothDevice);
var serviceGuid = Guid.Parse("34B1CF4D-1069-4AD6-89B6-E161D79BE4D8");
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid(serviceGuid), BluetoothCacheMode.Uncached);
var rfcommService = bluetoothDevice.RfcommServices.FirstOrDefault();
for (int i = 0; i < bluetoothDevice.RfcommServices.Count; i++)
{
rfcommService = bluetoothDevice.RfcommServices.ElementAt(i);
if (rfcommService.ServiceId.Uuid.Equals(serviceGuid))
{
break;
}
}
if (rfcommService != null)
{
return(await ConnectToStreamSocket(bluetoothDevice,
rfcommService.ConnectionServiceName));
}
else
{
throw new Exception(
"Selected bluetooth device does not advertise any RFCOMM service");
}
}
public async Task <bool> HasService(RfcommServiceId serviceId, ushort sdpServiceNameAttributeId)
{
var rfcommServices = await m_btDevice.GetRfcommServicesForIdAsync(
serviceId,
BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count == 0)
{
// Could not discover the service on the remote device
return(false);
}
var m_frCommService = rfcommServices.Services[0];
var attributes = await m_frCommService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(sdpServiceNameAttributeId))
{
// The service is using an unexpected format for the Service Name attribute.
return(false);
}
var attributeReader = DataReader.FromBuffer(attributes[sdpServiceNameAttributeId]);
attributeReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
var serviceNameLength = attributeReader.ReadByte();
var serviceName = attributeReader.ReadString(serviceNameLength);
return(serviceName == BluetoothMessageOrchestrator.SdpServiceName);
}
/// <summary>
/// This is a async task to connect to device and create _socket, _dataReader and _dataWriter object.
/// </summary>
/// <param name="BtdeviceId"></param>
/// <returns> boolean</returns>
public async Task <Boolean> ConnectAsyncFromId(string BtdeviceId)
{
deviceId = BtdeviceId;
StopDeviceWatcher();
bluetoothDevice = await BluetoothDevice.FromIdAsync(BtdeviceId);
if (bluetoothDevice != null)
{
if (deviceConnectedCallback != null)
{
deviceConnectedCallback(this, deviceInformation);
}
if (appSuspendEventHandler == null || appResumeEventHandler == null)
{
RegisterForAppEvents();
}
if (deviceAccessEventHandler == null)
{
RegisterForDeviceAccessStatusChange();
}
var _rfcomService = await bluetoothDevice.GetRfcommServicesForIdAsync(RfcommServiceId.SerialPort, BluetoothCacheMode.Uncached);
if (_rfcomService.Services.Count <= 0)
{
rootPage.StatusBar("Serial service not found on " + bluetoothDevice.Name, BarStatus.Error);
return(false);
}
var serialService = _rfcomService.Services[0];
lock (this) { _socket = new StreamSocket(); } // for marking this as crtical section.
try
{
// socket initializesd
await _socket.ConnectAsync(serialService.ConnectionHostName, serialService.ConnectionServiceName, SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
rootPage.StatusBar("connection to device done sucessfully", BarStatus.Sucess);
// reader and writer assingment.
_serialWriter = new DataWriter(_socket.OutputStream);
_serialReader = new DataReader(_socket.InputStream);
}
catch (Exception e)
{
rootPage.StatusBar(e.ToString(), BarStatus.Error);
}
}
return(bluetoothDevice != null);
}
public async void Connect(string devid)
{
this.Logger.Info("入力デバイスへの接続開始:" + devid);
this.StartingSendTaskFlag = true;
this.StartingReceiveTaskFlag = true;
this.SelectedDeviceInfo = (from i in KnownDeviceList where i.Id == devid select i).First();
try {
SelectedDevice = await BluetoothDevice.FromIdAsync(this.SelectedDeviceInfo.Id);
var rfcommsrv = await SelectedDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid(RfcommServiceUuid), BluetoothCacheMode.Uncached);
RfcommService = rfcommsrv.Services[0];
var attributes = await RfcommService.GetSdpRawAttributesAsync();
var attributereader = DataReader.FromBuffer(attributes[0x100]);
var attributetype = attributereader.ReadByte();
var servicenamelength = attributereader.ReadByte();
attributereader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16BE;
Socket = new StreamSocket();
await Socket.ConnectAsync(RfcommService.ConnectionHostName, RfcommService.ConnectionServiceName);
SocketWriter = new DataWriter(Socket.OutputStream);
SocketReader = new DataReader(Socket.InputStream);
this.RunningFlag = true;
this.SendTask = Task.Run(() => { this.RunSend(); });
this.ReceiveTask = Task.Run(() => { this.RunReceive(); });
this.ConnectStatusChanged?.Invoke(this, new AsyncCompletedEventArgs(null, false, BluetoothApplicationConnectStatus.Connect));
} catch (Exception ex) {
this.Logger.Error(ex, "入力デバイスへの接続失敗");
this.RunningFlag = false;
this.StartingSendTaskFlag = false;
this.StartingReceiveTaskFlag = false;
this.ConnectStatusChanged?.Invoke(this, new AsyncCompletedEventArgs(null, false, BluetoothApplicationConnectStatus.Error));
}
}
/// <summary>
/// Invoked once the user has selected the device to connect to.
/// Once the user has selected the device,
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void ConnectButton_Click(object sender, RoutedEventArgs e)
{
// Make sure user has selected a device first
if (resultsListView.SelectedItem != null)
{
rootPage.NotifyUser("Connecting to remote device. Please wait...", NotifyType.StatusMessage);
}
else
{
rootPage.NotifyUser("Please select an item to connect to", NotifyType.ErrorMessage);
return;
}
RfcommChatDeviceDisplay deviceInfoDisp = resultsListView.SelectedItem as RfcommChatDeviceDisplay;
// Perform device access checks before trying to get the device.
// First, we check if consent has been explicitly denied by the user.
DeviceAccessStatus accessStatus = DeviceAccessInformation.CreateFromId(deviceInfoDisp.Id).CurrentStatus;
if (accessStatus == DeviceAccessStatus.DeniedByUser)
{
rootPage.NotifyUser("This app does not have access to connect to the remote device (please grant access in Settings > Privacy > Other Devices", NotifyType.ErrorMessage);
return;
}
// If not, try to get the Bluetooth device
try
{
bluetoothDevice = await BluetoothDevice.FromIdAsync(deviceInfoDisp.Id);
}
catch (Exception ex)
{
rootPage.NotifyUser(ex.Message, NotifyType.ErrorMessage);
return;
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
if (bluetoothDevice == null)
{
rootPage.NotifyUser("Bluetooth Device returned null. Access Status = " + accessStatus.ToString(), NotifyType.ErrorMessage);
}
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
chatService = rfcommServices.Services[0];
}
else
{
rootPage.NotifyUser(
"Could not discover the chat service on the remote device",
NotifyType.StatusMessage);
return;
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await chatService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(Constants.SdpServiceNameAttributeId))
{
rootPage.NotifyUser(
"The Chat service is not advertising the Service Name attribute (attribute id=0x100). " +
"Please verify that you are running the BluetoothRfcommChat server.",
NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
return;
}
var attributeReader = DataReader.FromBuffer(attributes[Constants.SdpServiceNameAttributeId]);
var attributeType = attributeReader.ReadByte();
if (attributeType != Constants.SdpServiceNameAttributeType)
{
rootPage.NotifyUser(
"The Chat service is using an unexpected format for the Service Name attribute. " +
"Please verify that you are running the BluetoothRfcommChat server.",
NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
return;
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = UnicodeEncoding.Utf8;
deviceWatcher.Stop();
lock (this)
{
chatSocket = new StreamSocket();
}
try
{
await chatSocket.ConnectAsync(chatService.ConnectionHostName, chatService.ConnectionServiceName);
SetChatUI(attributeReader.ReadString(serviceNameLength), bluetoothDevice.Name);
chatWriter = new DataWriter(chatSocket.OutputStream);
DataReader chatReader = new DataReader(chatSocket.InputStream);
ReceiveStringLoop(chatReader);
}
catch (Exception ex)
{
switch ((uint)ex.HResult)
{
case (0x80070490): // ERROR_ELEMENT_NOT_FOUND
rootPage.NotifyUser("Please verify that you are running the BluetoothRfcommChat server.", NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
break;
default:
throw;
}
}
}
/// <summary>
/// Connect the client to a remote bluetooth host using PenInformation instance
/// </summary>
/// <param name="penInformation">The instance of PenInformation class</param>
/// <returns>When this method completes successfully, it returns a boolean result</returns>
public async Task <bool> Connect(PenInformation penInformation)
{
try
{
// lock try 블럭 안으로 이동
await semaphreSlime.WaitAsync();
if (Alive)
{
return(false);
}
bool ret = await Pairing(penInformation);
if (ret == false)
{
return(false);
}
// 소켓을 멤버 변수로 가지고 있게끔
streamSocket = new StreamSocket();
//BluetoothDevice bluetoothDevice = await BluetoothDevice.FromIdAsync(penInformation.deviceInformation.Id);
// le의 deviceinformation id를 이용해 BluetoothDevice를 가져올 수 없기 때문에 이런식으로 우회함
BluetoothDevice bluetoothDevice = await BluetoothDevice.FromBluetoothAddressAsync(penInformation.BluetoothAddress);
if (bluetoothDevice == null)
{
return(false);
}
//var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(RfcommServiceId.SerialPort, BluetoothCacheMode.Uncached);
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid(RfcommServiceId.SerialPort.Uuid), BluetoothCacheMode.Uncached);
RfcommDeviceService chatService = null;
if (rfcommServices.Services.Count > 0)
{
chatService = rfcommServices.Services[0];
}
else
{
return(false);
}
await streamSocket.ConnectAsync(bluetoothDevice.HostName, chatService.ConnectionServiceName);
// 여기가 좀 지저분함
PenController.Protocol = penInformation.Protocol == Protocols.V2 || bluetoothDevice.ClassOfDevice.RawValue == ClassOfDeviceV2 ? Protocols.V2 : Protocols.V1;
await Task.Delay(200);
Bind(streamSocket);
}
catch (Exception ex)
{
switch ((uint)ex.HResult)
{
case (0x80070490): // ERROR_ELEMENT_NOT_FOUND
return(false);
case (0x800710DF): // ERROR_DEVICE_NOT_AVAILABLE
return(false);
default:
Debug.WriteLine($"Exception : {ex.Message}");
Debug.WriteLine($"Exception : {ex.StackTrace}");
return(false);
}
}
finally
{
semaphreSlime.Release();
}
return(true);
}
public async void Connect(RfcommDeviceDisplay deviceInfoDisp)
{
try
{
bluetoothDevice = await BluetoothDevice.FromIdAsync(deviceInfoDisp.Id);
}
catch
{
//rootPage.NotifyUser(ex.Message, NotifyType.ErrorMessage);
return;
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
string uuid = "17fcf242-f86d-4e35-805e-" + Constants.BLUETOOTH_ID;
Guid RfcommChatServiceUuid = Guid.Parse(uuid);
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(RfcommChatServiceUuid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
ConnectService = rfcommServices.Services[0];
}
else
{
return;
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
UInt16 SdpServiceNameAttributeId = 0x100;
var attributes = await ConnectService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(SdpServiceNameAttributeId))
{
Console.WriteLine("sdpAttributeがおかしい");
return;
}
byte SdpServiceNameAttributeType = (4 << 3) | 5;
var attributeReader = DataReader.FromBuffer(attributes[SdpServiceNameAttributeId]);
var attributeType = attributeReader.ReadByte();
if (attributeType != SdpServiceNameAttributeType)
{
Console.WriteLine("sdpNameAttributeがおかしい");
return;
}
var serviceNameLength = attributeReader.ReadByte();
lock (this) //lock構文、排他制御
{
ConnectSocket = new StreamSocket();
}
try
{
await ConnectSocket.ConnectAsync(ConnectService.ConnectionHostName, ConnectService.ConnectionServiceName);
}
catch (Exception ex) when((uint)ex.HResult == 0x80072740) // WSAEADDRINUSE
{
Console.WriteLine("socket接続がおかしい");
}
}
/// <summary>
/// Invoked once the user has selected the device to connect to.
/// Once the user has selected the device,
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void ConnectButton_Click(object sender, RoutedEventArgs e)
{
// Make sure user has selected a device first
if (resultsListView.SelectedItem != null)
{
rootPage.NotifyUser("Connecting to remote device. Please wait...", NotifyType.StatusMessage);
}
else
{
rootPage.NotifyUser("Please select an item to connect to", NotifyType.ErrorMessage);
return;
}
RfcommChatDeviceDisplay deviceInfoDisp = resultsListView.SelectedItem as RfcommChatDeviceDisplay;
// Perform device access checks before trying to get the device.
// First, we check if consent has been explicitly denied by the user.
DeviceAccessStatus accessStatus = DeviceAccessInformation.CreateFromId(deviceInfoDisp.Id).CurrentStatus;
if (accessStatus == DeviceAccessStatus.DeniedByUser)
{
rootPage.NotifyUser("This app does not have access to connect to the remote device (please grant access in Settings > Privacy > Other Devices", NotifyType.ErrorMessage);
return;
}
// If not, try to get the Bluetooth device
try
{
bluetoothDevice = await BluetoothDevice.FromIdAsync(deviceInfoDisp.Id);
}
catch (Exception ex)
{
rootPage.NotifyUser(ex.Message, NotifyType.ErrorMessage);
return;
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
if (bluetoothDevice == null)
{
rootPage.NotifyUser("Bluetooth Device returned null. Access Status = " + accessStatus.ToString(), NotifyType.ErrorMessage);
}
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
chatService = rfcommServices.Services[0];
}
else
{
rootPage.NotifyUser(
"Could not discover the chat service on the remote device",
NotifyType.StatusMessage);
return;
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await chatService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(Constants.SdpServiceNameAttributeId))
{
rootPage.NotifyUser(
"The Chat service is not advertising the Service Name attribute (attribute id=0x100). " +
"Please verify that you are running the BluetoothRfcommChat server.",
NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
return;
}
var attributeReader = DataReader.FromBuffer(attributes[Constants.SdpServiceNameAttributeId]);
var attributeType = attributeReader.ReadByte();
if (attributeType != Constants.SdpServiceNameAttributeType)
{
rootPage.NotifyUser(
"The Chat service is using an unexpected format for the Service Name attribute. " +
"Please verify that you are running the BluetoothRfcommChat server.",
NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
return;
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = UnicodeEncoding.Utf8;
deviceWatcher.Stop();
lock (this)
{
chatSocket = new StreamSocket();
}
try
{
await chatSocket.ConnectAsync(chatService.ConnectionHostName, chatService.ConnectionServiceName);
SetChatUI(attributeReader.ReadString(serviceNameLength), bluetoothDevice.Name);
chatWriter = new DataWriter(chatSocket.OutputStream);
DataReader chatReader = new DataReader(chatSocket.InputStream);
ReceiveStringLoop(chatReader);
}
catch (Exception ex)
{
switch ((uint)ex.HResult)
{
case (0x80070490): // ERROR_ELEMENT_NOT_FOUND
rootPage.NotifyUser("Please verify that you are running the BluetoothRfcommChat server.", NotifyType.ErrorMessage);
RunButton.IsEnabled = true;
break;
default:
throw;
}
}
}
private async void ConnectToServer()
{
try
{
//Hololens
bluetoothDevice = await BluetoothDevice.FromIdAsync("Bluetooth#Bluetooth58:00:e3:cf:52:da-b4:ae:2b:bf:1b:57");
//Yoga
//bluetoothDevice = await BluetoothDevice.FromIdAsync("Bluetooth#Bluetooth58:00:e3:cf:52:da-58:00:e3:d0:fa:22");
}
catch (Exception ex)
{
Debug.Log(ex.Message);
return;
}
if (bluetoothDevice == null)
{
Debug.Log("Bluetooth Device returned null.");
}
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
chatService = rfcommServices.Services[0];
}
else
{
Debug.Log(
"Could not discover the chat service on the remote device");
return;
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await chatService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(Constants.SdpServiceNameAttributeId))
{
Debug.Log(
"The Chat service is not advertising the Service Name attribute (attribute id=0x100). " +
"Please verify that you are running the BluetoothRfcommChat server.");
return;
}
var attributeReader = DataReader.FromBuffer(attributes[Constants.SdpServiceNameAttributeId]);
var attributeType = attributeReader.ReadByte();
if (attributeType != Constants.SdpServiceNameAttributeType)
{
Debug.Log(
"The Chat service is using an unexpected format for the Service Name attribute. " +
"Please verify that you are running the BluetoothRfcommChat server.");
return;
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = UnicodeEncoding.Utf8;
lock (this)
{
chatSocket = new StreamSocket();
}
try
{
await chatSocket.ConnectAsync(chatService.ConnectionHostName, chatService.ConnectionServiceName);
chatWriter = new DataWriter(chatSocket.OutputStream);
DataReader chatReader = new DataReader(chatSocket.InputStream);
ReceiveStringLoop(chatReader);
}
catch (Exception ex) when((uint)ex.HResult == 0x80070490) // ERROR_ELEMENT_NOT_FOUND
{
Debug.Log("Please verify that you are running the BluetoothRfcommChat server.");
}
catch (Exception ex) when((uint)ex.HResult == 0x80072740) // WSAEADDRINUSE
{
Debug.Log("Please verify that there is no other RFCOMM connection to the same device.");
}
}
public async void ConnectAsync(RfcommChatDeviceDisplay deviceInfoDisp)
{
// Perform device access checks before trying to get the device.
// First, we check if consent has been explicitly denied by the user.
DeviceAccessStatus accessStatus = DeviceAccessInformation.CreateFromId(deviceInfoDisp.Id).CurrentStatus;
if (accessStatus == DeviceAccessStatus.DeniedByUser)
{
throw new UnauthorizedAccessException("This app does not have access to connect to the remote device (please grant access in Settings > Privacy > Other Devices");
}
// If not, try to get the Bluetooth device
try
{
bluetoothDevice = await BluetoothDevice.FromIdAsync(deviceInfoDisp.Id);
}
catch (Exception ex)
{
throw ex;
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
if (bluetoothDevice == null)
{
throw new InvalidOperationException("Bluetooth Device returned null. Access Status = " + accessStatus.ToString());
}
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(RfcommChatServiceUuid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
chatService = rfcommServices.Services[0];
}
else
{
throw new InvalidOperationException("Could not discover the chat service on the remote device");
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await chatService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(SdpServiceNameAttributeId))
{
throw new InvalidOperationException("The Chat service is not advertising the Service Name attribute (attribute id=0x100). " +
"Please verify that you are running the BluetoothRfcommChat server.");
}
var attributeReader = DataReader.FromBuffer(attributes[SdpServiceNameAttributeId]);
var attributeType = attributeReader.ReadByte();
if (attributeType != SdpServiceNameAttributeType)
{
throw new InvalidOperationException(
"The Chat service is using an unexpected format for the Service Name attribute. " +
"Please verify that you are running the BluetoothRfcommChat server.");
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
lock (this)
{
chatSocket = new StreamSocket();
}
try
{
await chatSocket.ConnectAsync(chatService.ConnectionHostName, chatService.ConnectionServiceName);
// TODO: powiadomienie, że połączono
//SetChatUI(attributeReader.ReadString(serviceNameLength), bluetoothDevice.Name);
chatWriter = new DataWriter(chatSocket.OutputStream);
DataReader chatReader = new DataReader(chatSocket.InputStream);
ReceiveDataLoop(chatReader);
}
catch (Exception ex) when((uint)ex.HResult == 0x80070490) // ERROR_ELEMENT_NOT_FOUND
{
throw new InvalidOperationException("Please verify that you are running the BluetoothRfcommChat server.");
}
catch (Exception ex) when((uint)ex.HResult == 0x80072740) // WSAEADDRINUSE
{
throw new InvalidOperationException("Please verify that there is no other RFCOMM connection to the same device.");
}
}
private async void Connect(DeviceInformation devInfo)
{
try
{
Logging.Log.Trace("Attempting to connect to Bluetooth Device: " + devInfo.Name);
targetDevice = await BluetoothDevice.FromIdAsync(devInfo.Id);
targetDevice.ConnectionStatusChanged += new TypedEventHandler <BluetoothDevice, object>(async(btd, obj) =>
{
Logging.Log.Trace("Changed Connection Status for " + btd.Name + " to " + btd.ConnectionStatus);
});
if (targetDevice != null)
{
const BluetoothCacheMode bluetoothCacheMode = BluetoothCacheMode.Uncached;
var targetBluetoothServices = await targetDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid(Constants.Constants.broadcastGuid), bluetoothCacheMode);
Logging.Log.Trace("Searching Target Device " + devInfo.Name + " for Bluetooth Chat Service.");
var retrievedServices = targetBluetoothServices.Services;
if (retrievedServices.Count > 0)
{
Logging.Log.Trace("Bluetooth Chat Service Found on " + devInfo.Name);
var retrievedService = retrievedServices[0];
var attributes = await retrievedService.GetSdpRawAttributesAsync();
var attributeReader = DataReader.FromBuffer(attributes[Constants.Constants.serviceNameID]);
var attributeType = attributeReader.ReadByte();
var serviceNameLength = attributeReader.ReadByte();
StreamSocket bluetoothSocket = null;
DataWriter bluetoothWriter = null;
//lock (this)
// {
bluetoothSocket = new StreamSocket();
//}
await bluetoothSocket.ConnectAsync(retrievedService.ConnectionHostName, retrievedService.ConnectionServiceName);
bluetoothWriter = new DataWriter(bluetoothSocket.OutputStream);
DataReader chatReader = new DataReader(bluetoothSocket.InputStream);
Logging.Log.Trace("Connection to " + devInfo.Name + " Chat Service Established. Awaiting data...");
var connectedDevice = new ConnectedDevice(devInfo.Name, targetDevice, bluetoothWriter, chatReader, netctl);
netctl.AddDevice(connectedDevice);
}
else
{
Logging.Log.Trace("No valid services could be found on " + devInfo.Name + ". Ignoring.");
}
}
else
{
Logging.Log.Trace("Target Device is Null.");
}
}
catch (Exception ex)
{
Logging.Log.Error("An Exception Occured. The target device may not have an active service, or something went wrong.\n" + ex.Message);
return;
}
}
/// <summary>
/// Invoked once the user has selected the device to connect to.
/// Once the user has selected the device,
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public async Task <bool> ConnectAsync(RomeRemoteSystem system)
{
// Make sure user has selected a device first
if (system != null)
{
Debug.WriteLine("Connecting to remote device. Please wait...");
}
else
{
Debug.WriteLine("Please select an item to connect to");
return(false);
}
// Perform device access checks before trying to get the device.
// First, we check if consent has been explicitly denied by the user.
DeviceAccessStatus accessStatus = DeviceAccessInformation.CreateFromId(system.Id).CurrentStatus;
if (accessStatus == DeviceAccessStatus.DeniedByUser)
{
Debug.WriteLine("This app does not have access to connect to the remote device (please grant access in Settings > Privacy > Other Devices");
return(false);
}
// If not, try to get the Bluetooth device
try
{
_bluetoothDevice = await BluetoothDevice.FromIdAsync(system.Id);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
StopWatcher();
return(false);
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
if (_bluetoothDevice == null)
{
Debug.WriteLine("Bluetooth Device returned null. Access Status = " + accessStatus.ToString());
}
if (_bluetoothDevice == null)
{
return(false);
}
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
var rfcommServices = await _bluetoothDevice?.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(Constants.SERVICE_UUID), BluetoothCacheMode.Uncached);
if (rfcommServices?.Services.Count > 0)
{
_chatService = rfcommServices.Services[0];
}
else
{
Debug.WriteLine("Could not discover the chat service on the remote device");
StopWatcher();
return(false);
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await _chatService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(Constants.SERVICE_ATTRIBUTE_ID))
{
Debug.WriteLine(
"The Chat service is not advertising the Service Name attribute (attribute id=0x100). " +
"Please verify that you are running the BluetoothRfcommChat server.");
StopWatcher();
return(false);
}
var attributeReader = DataReader.FromBuffer(attributes[Constants.SERVICE_ATTRIBUTE_ID]);
var attributeType = attributeReader.ReadByte();
if (attributeType != Constants.SERVICE_ATTRIBUTE_TYPE)
{
Debug.WriteLine(
"The Chat service is using an unexpected format for the Service Name attribute. " +
"Please verify that you are running the BluetoothRfcommChat server.");
StopWatcher();
return(false);
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
StopWatcher();
lock (this)
{
_chatSocket = new StreamSocket();
}
try
{
await _chatSocket.ConnectAsync(_chatService.ConnectionHostName, _chatService.ConnectionServiceName);
Debug.WriteLine("Connected to : " + attributeReader.ReadString(serviceNameLength) + _bluetoothDevice.Name);
_chatWriter = new DataWriter(_chatSocket.OutputStream);
DataReader chatReader = new DataReader(_chatSocket.InputStream);
ReceiveStringLoop(chatReader);
return(true);
}
catch (Exception ex) when((uint)ex.HResult == 0x80070490) // ERROR_ELEMENT_NOT_FOUND
{
Debug.WriteLine("Please verify that you are running the BluetoothRfcommChat server.");
StopWatcher();
}
catch (Exception ex) when((uint)ex.HResult == 0x80072740) // WSAEADDRINUSE
{
Debug.WriteLine("Please verify that there is no other RFCOMM connection to the same device.");
StopWatcher();
}
return(false);
}
public async void Connect(String devID)
{
// Perform device access checks before trying to get the device.
// First, we check if consent has been explicitly denied by the user.
lastDevID = devID;
isCanceled = false;
isConnected = false;
WriteDebug("Check Connection");
DeviceAccessStatus accessStatus = DeviceAccessInformation.CreateFromId(devID).CurrentStatus;
if (accessStatus == DeviceAccessStatus.DeniedByUser)
{
return;
}
// If not, try to get the Bluetooth device
try
{
bluetoothDevice = await BluetoothDevice.FromIdAsync(devID);
}
catch (Exception)
{
return;
}
// If we were unable to get a valid Bluetooth device object,
// it's most likely because the user has specified that all unpaired devices
// should not be interacted with.
if (bluetoothDevice == null)
{
return;
}
WriteDebug("Sync Devices..");
// This should return a list of uncached Bluetooth services (so if the server was not active when paired, it will still be detected by this call
long start = DateTime.Now.Ticks;
RfcommDeviceServicesResult rfcommServices = null;
while (true)
{
rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(
RfcommServiceId.FromUuid(guid), BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count > 0)
{
WriteDebug($"{rfcommServices.Error}.");
RfService = rfcommServices.Services[0];
break;
}
lock (this)
{
long current = DateTime.Now.Ticks;
if (current - 10_00000000 > start)
{
break;
}
}
}
if (RfService == null)
{
isCanceled = true;
Disconnect();
onDisconnect();
return;
}
// Do various checks of the SDP record to make sure you are talking to a device that actually supports the Bluetooth Rfcomm Chat Service
var attributes = await RfService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(0x100))
{
return;
}
var attributeReader = DataReader.FromBuffer(attributes[0x100]);
var attributeType = attributeReader.ReadByte();
if (attributeType != ((4 << 3) | 5))
{
return;
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = UnicodeEncoding.Utf8;
//------------bind Stream------
lock (this)
{
streamSocket = new StreamSocket();
}
try
{
await streamSocket.ConnectAsync(RfService.ConnectionHostName, RfService.ConnectionServiceName);
WriteDebug($"{RfService.ConnectionHostName} : {RfService.Device.ConnectionStatus}");
dataRegister.conditionText.Text = "Checking Connection...";
dataWriter = new DataWriter(streamSocket.OutputStream);
DataReader chatReader = new DataReader(streamSocket.InputStream);
isConnected = true;
ReceiveStringLoop(chatReader);
}
catch (Exception ex) when((uint)ex.HResult == 0x80070490) // ERROR_ELEMENT_NOT_FOUND
{
return;
}
catch (Exception ex) when((uint)ex.HResult == 0x80072740) // WSAEADDRINUSE
{
return;
}
catch
{
}
}