public async void Run(IBackgroundTaskInstance taskInstance)
{
_deferral = taskInstance.GetDeferral();
var details = taskInstance.TriggerDetails as GattServiceProviderTriggerDetails;
service = details.Connection.Service;
Debug.WriteLine($"task is triggered. TriggerId: {details?.Connection.TriggerId}");
Debug.WriteLine("");
var settings = ApplicationData.Current.LocalSettings;
if (settings.Values["BackgroundNotes"] != null)
{
settings.Values.Remove("BackgroundNotes");
}
settings.Values["BackgroundNotes2"] = "we started Bg task....";
ApplicationData.Current.LocalSettings.Values.Remove("Op1ReceivedEver");
{
foreach (var gattLocalCharacteristic in service.Characteristics)
{
Debug.WriteLine($"user descr: {gattLocalCharacteristic.UserDescription}");
if (gattLocalCharacteristic.UserDescription == "Operand 1 Characteristic")
{
gattLocalCharacteristic.WriteRequested += Op1Characteristic_WriteRequestedAsync;
}
}
}
details.Connection.Start();
}
public async Task Init(GattLocalService gatt)
{
var ch = await gatt.CreateCharacteristicAsync(
this.Uuid,
new GattLocalCharacteristicParameters
{
CharacteristicProperties = this.ToNative(this.Properties),
ReadProtectionLevel = this.Permissions.HasFlag(GattPermissions.ReadEncrypted)
? GattProtectionLevel.EncryptionAndAuthenticationRequired
: GattProtectionLevel.Plain,
WriteProtectionLevel = this.Permissions.HasFlag(GattPermissions.WriteEncrypted)
? GattProtectionLevel.EncryptionAndAuthenticationRequired
: GattProtectionLevel.Plain,
}
);
foreach (var descriptor in this.Descriptors.OfType <IUwpGattDescriptor>())
{
await descriptor.Init(ch.Characteristic);
}
this.native = ch.Characteristic;
this.nativeReady.OnNext(ch.Characteristic);
}
private async Task CreateHidService()
{
// HID service.
var hidServiceProviderCreationResult = await GattServiceProvider.CreateAsync(GattServiceUuids.HumanInterfaceDevice);
if (hidServiceProviderCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the HID service provider: " + hidServiceProviderCreationResult.Error);
throw new Exception("Failed to create the HID service provider: " + hidServiceProviderCreationResult.Error);
}
m_hidServiceProvider = hidServiceProviderCreationResult.ServiceProvider;
m_hidService = m_hidServiceProvider.Service;
// HID keyboard Report characteristic.
var hidKeyboardReportCharacteristicCreationResult = await m_hidService.CreateCharacteristicAsync(GattCharacteristicUuids.Report, c_hidInputReportParameters);
if (hidKeyboardReportCharacteristicCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the keyboard report characteristic: " + hidKeyboardReportCharacteristicCreationResult.Error);
throw new Exception("Failed to create the keyboard report characteristic: " + hidKeyboardReportCharacteristicCreationResult.Error);
}
m_hidKeyboardReport = hidKeyboardReportCharacteristicCreationResult.Characteristic;
m_hidKeyboardReport.SubscribedClientsChanged += HidKeyboardReport_SubscribedClientsChanged;
// HID keyboard Report Reference descriptor.
var hidKeyboardReportReferenceCreationResult = await m_hidKeyboardReport.CreateDescriptorAsync(BluetoothUuidHelper.FromShortId(c_hidReportReferenceDescriptorShortUuid), c_hidKeyboardReportReferenceParameters);
if (hidKeyboardReportReferenceCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the keyboard report reference descriptor: " + hidKeyboardReportReferenceCreationResult.Error);
throw new Exception("Failed to create the keyboard report reference descriptor: " + hidKeyboardReportReferenceCreationResult.Error);
}
m_hidKeyboardReportReference = hidKeyboardReportReferenceCreationResult.Descriptor;
// HID Report Map characteristic.
var hidReportMapCharacteristicCreationResult = await m_hidService.CreateCharacteristicAsync(GattCharacteristicUuids.ReportMap, c_hidReportMapParameters);
if (hidReportMapCharacteristicCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the HID report map characteristic: " + hidReportMapCharacteristicCreationResult.Error);
throw new Exception("Failed to create the HID report map characteristic: " + hidReportMapCharacteristicCreationResult.Error);
}
m_hidReportMap = hidReportMapCharacteristicCreationResult.Characteristic;
// HID Information characteristic.
var hidInformationCharacteristicCreationResult = await m_hidService.CreateCharacteristicAsync(GattCharacteristicUuids.HidInformation, c_hidInformationParameters);
if (hidInformationCharacteristicCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the HID information characteristic: " + hidInformationCharacteristicCreationResult.Error);
throw new Exception("Failed to create the HID information characteristic: " + hidInformationCharacteristicCreationResult.Error);
}
m_hidInformation = hidInformationCharacteristicCreationResult.Characteristic;
// HID Control Point characteristic.
var hidControlPointCharacteristicCreationResult = await m_hidService.CreateCharacteristicAsync(GattCharacteristicUuids.HidControlPoint, c_hidControlPointParameters);
if (hidControlPointCharacteristicCreationResult.Error != BluetoothError.Success)
{
Debug.WriteLine("Failed to create the HID control point characteristic: " + hidControlPointCharacteristicCreationResult.Error);
throw new Exception("Failed to create the HID control point characteristic: " + hidControlPointCharacteristicCreationResult.Error);
}
m_hidControlPoint = hidControlPointCharacteristicCreationResult.Characteristic;
m_hidControlPoint.WriteRequested += HidControlPoint_WriteRequested;
m_hidServiceProvider.AdvertisementStatusChanged += HidServiceProvider_AdvertisementStatusChanged;
}
