/// <summary>
/// Invoked when the device watcher finds a matching custom sensor device
/// </summary>
/// <param name="watcher">device watcher</param>
/// <param name="customSensorDevice">device information for the custom sensor that was found</param>
public async void OnCustomSensorAdded(DeviceWatcher watcher, DeviceInformation customSensorDevice)
{
try
{
customSensor = await CustomSensor.FromIdAsync(customSensorDevice.Id);
if (customSensor != null)
{
CustomSensorReading reading = customSensor.GetCurrentReading();
if (!reading.Properties.ContainsKey(CO2LevelKey))
{
rootPage.NotifyUser("The found custom sensor doesn't provide CO2 reading", NotifyType.ErrorMessage);
customSensor = null;
}
}
else
{
rootPage.NotifyUser("No custom sensor found", NotifyType.ErrorMessage);
}
}
catch (Exception e)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("The user may have denied access to the custom sensor. Error: " + e.Message, NotifyType.ErrorMessage);
});
}
}
private void StartWatcher()
{
DeviceWatcherEventKind[] triggerEventKinds = { DeviceWatcherEventKind.Add, DeviceWatcherEventKind.Remove, DeviceWatcherEventKind.Update };
switch (m_deviceType)
{
case AudioDeviceType.Input:
{
m_deviceClass = DeviceClass.AudioRender;
break;
}
case AudioDeviceType.Output:
{
m_deviceClass = DeviceClass.AudioRender;
break;
}
}
m_deviceWatcher = DeviceInformation.CreateWatcher(m_deviceClass);
// Get the background trigger for this watcher
m_deviceWatcherTrigger = m_deviceWatcher.GetBackgroundTrigger(triggerEventKinds);
// Register this trigger for our background task
RegisterBackgroundTask(m_deviceWatcherTrigger);
}
public async Task <bool> StartAsync()
{
// only one start allowed on the object
lock (this)
{
if (_started)
{
return(false);
}
_started = true;
}
if (await WiFiAdapter.RequestAccessAsync() != WiFiAccessStatus.Allowed)
{
return(false);
}
_started = true;
// enumerate and monitor WiFi devices in the system
string deviceSelector = WiFiAdapter.GetDeviceSelector();
_watcher = Windows.Devices.Enumeration.DeviceInformation.CreateWatcher(deviceSelector);
_watcher.Added += _watcher_Added;
_watcher.Removed += _watcher_Removed;
_watcher.Start();
return(true);
}
private static void HandleDeviceRemoved(DeviceWatcher sender, DeviceInformationUpdate args)
{
var gamepad = _gamepads[args.Id];
_gamepads.Remove(args.Id);
GamepadRemoved?.Invoke(sender, gamepad);
}
//public ObservableCollection<clsDevType> DevTypes = new ObservableCollection<clsDevType>();
async void WatchDevices_Click(object sender, RoutedEventArgs eventArgs)
{
if (watcher != null)
{
watcher = null;
}
count = 0;
isEnumerationComplete = false;
StopStatus = null;
//DeviceInterfacesOutputList.Items.Clear();
try
{
dispatcher = Window.Current.CoreWindow.Dispatcher;
watcher = DeviceInformation.CreateWatcher();
// Add event handlers
watcher.Added += watcher_Added;
watcher.Removed += watcher_Removed;
watcher.Updated += watcher_Updated;
watcher.EnumerationCompleted += watcher_EnumerationCompleted;
watcher.Stopped += watcher_Stopped;
watcher.Start();
OutputText.Text = "Enumeration started.";
this.btnWatchDevices.IsEnabled = false;
this.btnStop.IsEnabled = !(this.btnWatchDevices.IsEnabled);
}
catch (ArgumentException)
{
//The ArgumentException gets thrown by FindAllAsync when the GUID isn't formatted properly
//The only reason we're catching it here is because the user is allowed to enter GUIDs without validation
//In normal usage of the API, this exception handling probably wouldn't be necessary when using known-good GUIDs
OutputText.Text = "Caught ArgumentException. Failed to create watcher.";
}
}
/// <summary>
/// Invoked when the device watcher detects that the proximity sensor was added.
/// </summary>
/// <param name="sender">The device watcher.</param>
/// <param name="device">The device that was added.</param>
private async void OnProximitySensorAddedAsync(DeviceWatcher sender, DeviceInformation device)
{
if (this.proximitySensor == null)
{
var addedSensor = ProximitySensor.FromId(device.Id);
if (addedSensor != null)
{
var minimumDistanceSatisfied = true;
//if we care about minimum distance
if (this.MinimumDistanceInMillimeters > Int32.MinValue)
{
if ((this.MinimumDistanceInMillimeters > addedSensor.MaxDistanceInMillimeters) ||
(this.MinimumDistanceInMillimeters < addedSensor.MinDistanceInMillimeters))
{
minimumDistanceSatisfied = false;
}
}
if (minimumDistanceSatisfied)
{
this.proximitySensor = addedSensor;
await SetActiveFromReadingAsync(this.proximitySensor.GetCurrentReading());
this.proximitySensor.ReadingChanged += ProximitySensor_ReadingChangedAsync;
}
}
}
}
private void OnDeviceRemoved(DeviceWatcher sender, DeviceInformationUpdate deviceInformationUpdate)
{
if (Disconnected != null)
{
Disconnected();
}
}
async void watcher_Removed(Windows.Devices.Enumeration.DeviceWatcher sender, DeviceInformationUpdate devUpdate)
{
;
int count2 = 0;
//Convert interfaces array to a list (IList).
List <DeviceInformation> interfaceList = new List <DeviceInformation>(interfaces);
foreach (DeviceInformation deviceInterface in interfaces)
{
if (count2 < count)
{
if (interfaces[count2].Id == devUpdate.Id)
{
//Remove the element.
interfaceList.RemoveAt(count2);
}
}
count2 += 1;
}
//Convert the list back to the interfaces array.
interfaces = interfaceList.ToArray();
count -= 1;
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
OutputText.Text = "Enumeration device was removed. ";
DisplayDeviceInterfaceArray();
});
}
static public void StartSearch()
{
// Additional properties we would like about the device.
// Property strings are documented here https://msdn.microsoft.com/en-us/library/windows/desktop/ff521659(v=vs.85).aspx
string[] requestedProperties = { "System.Devices.Aep.DeviceAddress", "System.Devices.Aep.IsConnected", "System.Devices.Aep.Bluetooth.Le.IsConnectable", "System.Devices.Aep.AepId", "System.Devices.Aep.Category" };
// BT_Code: Example showing paired and non-paired in a single query.
string aqsAllBluetoothLEDevices = "(System.Devices.Aep.ProtocolId:=\"{bb7bb05e-5972-42b5-94fc-76eaa7084d49}\")";
deviceWatcher =
DeviceInformation.CreateWatcher(
aqsAllBluetoothLEDevices,
requestedProperties,
DeviceInformationKind.AssociationEndpoint);
// Register event handlers before starting the watcher.
deviceWatcher.Added -= DeviceWatcher_Added;
deviceWatcher.Updated -= DeviceWatcher_Updated;
deviceWatcher.Removed -= DeviceWatcher_Removed;
deviceWatcher.EnumerationCompleted -= DeviceWatcher_EnumerationCompleted;
deviceWatcher.Stopped -= DeviceWatcher_Stopped;
deviceWatcher.Added += DeviceWatcher_Added;
deviceWatcher.Updated += DeviceWatcher_Updated;
deviceWatcher.Removed += DeviceWatcher_Removed;
deviceWatcher.EnumerationCompleted += DeviceWatcher_EnumerationCompleted;
deviceWatcher.Stopped += DeviceWatcher_Stopped;
// Start the watcher.
deviceWatcher.Start();
if (_searchMethod == 0)
{
_autoEvent.WaitOne();
}
}
public ExternalDeviceService()
{
_deviceWatcher = DeviceInformation.CreateWatcher(DeviceClass.PortableStorageDevice);
_deviceWatcher.Added += DeviceAdded;
_deviceWatcher.Removed += DeviceRemoved;
_deviceWatcher.Start();
}
private void DeviceRemoved(DeviceWatcher sender, DeviceInformationUpdate args)
{
if (ExternalDeviceRemoved != null)
{
ExternalDeviceRemoved(this, args.Id);
}
}
public UsbScopeDevice()
{
var usbScopeSelector = HidDevice.GetDeviceSelector(UsagePage, UsageId, Vid, Pid);
ScopeDeviceWatcher = DeviceInformation.CreateWatcher(usbScopeSelector);
ScopeDeviceWatcher.Added += new TypedEventHandler<DeviceWatcher, DeviceInformation>(OnDeviceAdded);
ScopeDeviceWatcher.Removed += new TypedEventHandler<DeviceWatcher, DeviceInformationUpdate>(OnDeviceRemoved);
ScopeDeviceWatcher.Start();
}
public Scenario4_BackgroundProximitySensor()
{
this.InitializeComponent();
watcher = DeviceInformation.CreateWatcher(ProximitySensor.GetDeviceSelector());
watcher.Added += OnProximitySensorAdded;
watcher.Start();
}
private static async void HandleDeviceAdded(DeviceWatcher sender, DeviceInformation args)
{
var device = await HidDevice.FromIdAsync(args.Id, FileAccessMode.Read);
var gamepad = new HidGamepad(args, device);
_gamepads.Add(args.Id, gamepad);
GamepadAdded?.Invoke(sender, gamepad);
}
public NetworkPresenter()
{
WiFiAdaptersWatcher = DeviceInformation.CreateWatcher(WiFiAdapter.GetDeviceSelector());
WiFiAdaptersWatcher.EnumerationCompleted += AdaptersEnumCompleted;
WiFiAdaptersWatcher.Added += AdaptersAdded;
WiFiAdaptersWatcher.Removed += AdaptersRemoved;
WiFiAdaptersWatcher.Start();
}
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
watcher = DeviceInformation.CreateWatcher(ProximitySensor.GetDeviceSelector());
watcher.Added += OnProximitySensorAdded;
watcher.Start();
timer = new Timer(TimerCallBack, null, Timeout.Infinite, 4000);
await InitializeCameraAsync();
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
if (null != foundSensor.MaxDistanceInMillimeters)
{
// Check if this is the sensor that matches our ranges.
// TODO: Customize these values to your application's needs.
// Here, we are looking for a sensor that can detect close objects
// up to 3cm away, so we check the upper bound of the detection range.
const uint distanceInMillimetersLValue = 30; // 3 cm
const uint distanceInMillimetersRValue = 50; // 5 cm
if (foundSensor.MaxDistanceInMillimeters >= distanceInMillimetersLValue &&
foundSensor.MaxDistanceInMillimeters <= distanceInMillimetersRValue)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Found a proximity sensor that meets the detection range", NotifyType.StatusMessage);
});
}
else
{
// We'll use the sensor anyway, to demonstrate how events work.
// Your app may decide not to use the sensor.
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not meet the detection range, using it anyway", NotifyType.StatusMessage);
});
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not report detection ranges, using it anyway", NotifyType.StatusMessage);
});
}
if (null != foundSensor)
{
sensor = foundSensor;
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private async void DeviceWatcher_Added(DeviceWatcher sender, DeviceInformation args)
{
await coreDispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
FoundDeviceList.Add(args);
});
}
private async void DevicesRemoved(DeviceWatcher sender, DeviceInformationUpdate args)
{
//Debug.WriteLine("Removed USB device: " + args.Id);
await dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
UpdateDevices();
});
}
private void watcher_Removed(Windows.Devices.Enumeration.DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformationUpdate args)
{
Debug.WriteLine(args.Id);
this.BeginInvoke((Action)(() =>
{
//perform on the UI thread
PrintDrives();
}));
}
private async void DevicesEnumCompleted(DeviceWatcher sender, object args)
{
//Debug.WriteLine("USB Devices Enumeration Completed");
await dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
UpdateDevices();
});
}
public void Dispose()
{
if (_deviceWatcher != null)
{
_deviceWatcher.Stop();
_deviceWatcher.Added -= DeviceAdded;
_deviceWatcher.Removed -= DeviceRemoved;
_deviceWatcher = null;
}
}
static HidGamepad()
{
var deviceSelector = HidDevice.GetDeviceSelector(0x01, 0x05);
_watcher = DeviceInformation.CreateWatcher(deviceSelector);
_watcher.Added += HandleDeviceAdded;
_watcher.Updated += HandleDeviceUpdated;
_watcher.Removed += HandleDeviceRemoved;
_watcher.EnumerationCompleted += HandleEnumerationCompleted;
_watcher.Start();
}
async void watcher_EnumerationCompleted(Windows.Devices.Enumeration.DeviceWatcher sender, object args)
{
isEnumerationComplete = true;
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
OutputText.Text = "Enumeration complete. ";
DisplayDeviceInterfaceArray();
tblLatest.Text = "";
});
}
/// <summary>
/// Invoked when the device watcher detects that the proximity sensor was removed.
/// </summary>
/// <param name="sender">The device watcher.</param>
/// <param name="device">The device that was removed.</param>
private void OnProximitySensorRemoved(DeviceWatcher sender, DeviceInformationUpdate device)
{
if ((this.proximitySensor != null) && (this.proximitySensor.DeviceId == device.Id))
{
this.proximitySensor.ReadingChanged -= ProximitySensor_ReadingChangedAsync;
this.proximitySensor = null;
SetActive(false);
}
}
public ConnectedDevicePresenter(CoreDispatcher dispatcher)
{
this.dispatcher = dispatcher;
usbConnectedDevicesWatcher = DeviceInformation.CreateWatcher(usbDevicesSelector);
usbConnectedDevicesWatcher.EnumerationCompleted += DevicesEnumCompleted;
usbConnectedDevicesWatcher.Updated += DevicesAdded;
usbConnectedDevicesWatcher.Removed += DevicesRemoved;
usbConnectedDevicesWatcher.Start();
}
/// <summary>
/// Create a PosDeviceWatcher.
/// </summary>
/// <param name="deviceSelector">Device Selector string to use with DeviceWatcher</param>
/// <param name="dispatcher">Associated UI element's Dispatcher so that updates to this.FoundDeviceList are done safely.</param>
public PosDeviceWatcher(string deviceSelector, CoreDispatcher dispatcher)
{
FoundDeviceList = new ObservableCollection<DeviceInformation>();
coreDispatcher = dispatcher;
deviceWatcher = DeviceInformation.CreateWatcher(deviceSelector);
deviceWatcher.Added += DeviceWatcher_Added;
deviceWatcher.Removed += DeviceWatcher_Removed;
deviceWatcher.Updated += DeviceWatcher_Updated;
}
private void StartListeningForSerialPortChanges()
{
serialPortWatcher = DeviceInformation.CreateWatcher(SerialDevice.GetDeviceSelector());
serialPortWatcher.Added += SerialPortWatcher_Added;
serialPortWatcher.Removed += SerialPortWatcher_Removed;
serialPortWatcher.Updated += SerialPortWatcher_Updated;
serialPortWatcher.Start();
}
public MidiDeviceWatcher(DeviceWatcher watcher)
{
_watcher = watcher;
// wire up events
_watcher.Added += Watcher_Added;
_watcher.Removed += Watcher_Removed;
_watcher.Updated += Watcher_Updated;
_watcher.EnumerationCompleted += Watcher_EnumerationCompleted;
}
public DeviceWatcher()
{
subject = new Subject <IDevice>();
const string selector = "System.Devices.InterfaceClassGuid:= \"{4D1E55B2-F16F-11CF-88CB-001111000030}\" AND System.Devices.InterfaceEnabled:= System.StructuredQueryType.Boolean#True";
watcher = DeviceInformation.CreateWatcher(selector);
watcher.Added += Watcher_Added;
watcher.Removed += Watcher_Removed;
watcher.Updated += Watcher_Updated;
watcher.Stopped += Watcher_Stopped;
}
public DeviceWatcher()
{
subject = new Subject <IDevice>();
const string selector = "System.Devices.InterfaceClassGuid:= \"{A5DCBF10-6530-11D2-901F-00C04FB951ED}\" AND System.Devices.InterfaceEnabled:= System.StructuredQueryType.Boolean#True";
watcher = DeviceInformation.CreateWatcher(selector);
watcher.Added += Watcher_Added;
watcher.Removed += Watcher_Removed;
watcher.Updated += Watcher_Updated;
watcher.Stopped += Watcher_Stopped;
}
public Scenario2_Polling()
{
String customSensorSelector = "";
this.InitializeComponent();
customSensorSelector = CustomSensor.GetDeviceSelector(GUIDCustomSensorDeviceVendorDefinedTypeID);
watcher = DeviceInformation.CreateWatcher(customSensorSelector);
watcher.Added += OnCustomSensorAdded;
watcher.Start();
}
static Blink1()
{
var selector = HidDevice.GetDeviceSelector(0xFF00, 0x0001, 0x27B8, 0x01ED);
_watcher = DeviceInformation.CreateWatcher(selector);
_watcher.Added += HandleDeviceAdded;
_watcher.Updated += HandleDeviceUpdated;
_watcher.Removed += HandleDeviceRemoved;
_watcher.EnumerationCompleted += HandleEnumerationCompleted;
_watcher.Start();
}
async void watcher_Stopped(Windows.Devices.Enumeration.DeviceWatcher sender, object args)
{
if (watcher.Status == Windows.Devices.Enumeration.DeviceWatcherStatus.Aborted)
{
StopStatus = "Enumeration stopped unexpectedly. Click Watch to restart enumeration.";
}
else if (watcher.Status == Windows.Devices.Enumeration.DeviceWatcherStatus.Stopped)
{
StopStatus = "You requested to stop the enumeration. Click Watch to restart enumeration.";
}
}
/// <summary>
/// Constructor: Initialize and hook up Device Watcher events
/// </summary>
/// <param name="midiSelectorString">MIDI Device Selector</param>
/// <param name="dispatcher">CoreDispatcher instance, to update UI thread</param>
/// <param name="portListBox">The UI element to update with list of devices</param>
internal MidiDeviceWatcher(string midiSelectorString, CoreDispatcher dispatcher, ListBox portListBox)
{
this.deviceWatcher = DeviceInformation.CreateWatcher(midiSelectorString);
this.portList = portListBox;
this.midiSelector = midiSelectorString;
this.coreDispatcher = dispatcher;
this.deviceWatcher.Added += DeviceWatcher_Added;
this.deviceWatcher.Removed += DeviceWatcher_Removed;
this.deviceWatcher.Updated += DeviceWatcher_Updated;
this.deviceWatcher.EnumerationCompleted += DeviceWatcher_EnumerationCompleted;
}
private async void Watcher_Added(Windows.Devices.Enumeration.DeviceWatcher sender, DeviceInformation args)
{
// FIXME: async void - need to log error or something
var device = await HidDevice.FromIdAsync(args.Id, FileAccessMode.ReadWrite);
if (device == null)
{
// we probably don't have permission to use it
return;
}
subject.OnNext(new Device(args, device));
}
async void watcher_Added(Windows.Devices.Enumeration.DeviceWatcher sender, DeviceInformation deviceInterface)
{
interfaces[count] = deviceInterface;
count += 1;
if (isEnumerationComplete)
{
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
DisplayDeviceInterfaceArray();
OutputText.Text = "Watcher added: Enumeration was already complete.";
});
}
}
public Scenario3()
{
this.InitializeComponent();
//Create our watcher and have it find casting devices capable of video casting
watcher = DeviceInformation.CreateWatcher(CastingDevice.GetDeviceSelector(CastingPlaybackTypes.Video));
//Register for watcher events
watcher.Added += Watcher_Added;
watcher.Removed += Watcher_Removed;
watcher.Stopped += Watcher_Stopped;
watcher.EnumerationCompleted += Watcher_EnumerationCompleted;
}
private void btnWatcher_Click(object sender, RoutedEventArgs e)
{
if (_fWatcherStarted == false)
{
_publisher.Start();
if (_publisher.Status != WiFiDirectAdvertisementPublisherStatus.Started)
{
rootPage.NotifyUser("Failed to start advertisement.", NotifyType.ErrorMessage);
return;
}
DiscoveredDevices.Clear();
rootPage.NotifyUser("Finding Devices...", NotifyType.StatusMessage);
String deviceSelector = WiFiDirectDevice.GetDeviceSelector(
Utils.GetSelectedItemTag<WiFiDirectDeviceSelectorType>(cmbDeviceSelector));
_deviceWatcher = DeviceInformation.CreateWatcher(deviceSelector, new string[] { "System.Devices.WiFiDirect.InformationElements" });
_deviceWatcher.Added += OnDeviceAdded;
_deviceWatcher.Removed += OnDeviceRemoved;
_deviceWatcher.Updated += OnDeviceUpdated;
_deviceWatcher.EnumerationCompleted += OnEnumerationCompleted;
_deviceWatcher.Stopped += OnStopped;
_deviceWatcher.Start();
btnWatcher.Content = "Stop Watcher";
_fWatcherStarted = true;
}
else
{
_publisher.Stop();
btnWatcher.Content = "Start Watcher";
_fWatcherStarted = false;
_deviceWatcher.Added -= OnDeviceAdded;
_deviceWatcher.Removed -= OnDeviceRemoved;
_deviceWatcher.Updated -= OnDeviceUpdated;
_deviceWatcher.EnumerationCompleted -= OnEnumerationCompleted;
_deviceWatcher.Stopped -= OnStopped;
_deviceWatcher.Stop();
rootPage.NotifyUser("Device watcher stopped.", NotifyType.StatusMessage);
}
}
private void watcher_Added(Windows.Devices.Enumeration.DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformation args)
{
string name = GetPortableDeviceName(args.Id);
string type = GetPortableDeviceType(args.Id);
if (!deviceTypeList.ContainsKey(name))
{
deviceTypeList.Add(GetPortableDeviceName(args.Id), GetPortableDeviceType(args.Id));
}
this.BeginInvoke((Action)(() =>
{
//perform on the UI thread
PrintDrives();
}));
}
public Scenario2_Polling()
{
String customSensorSelector = "";
this.InitializeComponent();
customSensorSelector = CustomSensor.GetDeviceSelector(GUIDCustomSensorDeviceVendorDefinedTypeID);
watcher = DeviceInformation.CreateWatcher(customSensorSelector);
watcher.Added += OnCustomSensorAdded;
watcher.Start();
// Register to be notified when the user disables access to the custom sensor through privacy settings.
deviceAccessInformation = DeviceAccessInformation.CreateFromDeviceClassId(GUIDCustomSensorDeviceVendorDefinedTypeID);
deviceAccessInformation.AccessChanged += new TypedEventHandler<DeviceAccessInformation, DeviceAccessChangedEventArgs>(OnAccessChanged);
}
static public void Stop()
{
/// <summary>
/// Stops watching for all nearby Bluetooth devices.
/// </summary>
if (deviceWatcher != null)
{
// Unregister the event handlers.
deviceWatcher.Added -= DeviceWatcher_Added;
// Stop the watcher.
deviceWatcher.Stop();
deviceWatcher = null;
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
sensor = ProximitySensor.FromId(device.Id);
if (null == sensor)
{
// failed to find the sensor corresponding to the id
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private async void DeviceWatcher_Removed(DeviceWatcher sender, DeviceInformationUpdate args)
{
await coreDispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
for (int index = 0; index < FoundDeviceList.Count; ++index)
{
if (FoundDeviceList[index].Id == args.Id)
{
FoundDeviceList.RemoveAt(index);
break;
}
}
});
}
/// <summary>
/// Initializes a new instance of the MainForm form class.
/// </summary>
public MainForm()
{
LocRM = new ResourceManager("win81FactoryTest.AppResources.Res", typeof(win81FactoryTest.TestForm).Assembly);
InitializeComponent();
SetString();
this.FormBorderStyle = FormBorderStyle.None;//Full screen and no title
this.WindowState = FormWindowState.Maximized;
//Initialize device watcher
watcher = Windows.Devices.Enumeration.DeviceInformation.CreateWatcher(Windows.Devices.Enumeration.DeviceClass.PortableStorageDevice);
watcher.Added += watcher_Added;
watcher.Removed += watcher_Removed;
watcher.EnumerationCompleted += watcher_EnumerationCompleted;
watcher.Start();
}
async void watcher_Updated(Windows.Devices.Enumeration.DeviceWatcher sender, DeviceInformationUpdate devUpdate)
{
int count2 = 0;
foreach (DeviceInformation deviceInterface in interfaces)
{
if (count2 < count)
{
if (interfaces[count2].Id == devUpdate.Id)
{
//Update the element.
interfaces[count2].Update(devUpdate);
}
}
count2 += 1;
}
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
OutputText.Text = "Enumeration updated: Device added ";
DisplayDeviceInterfaceArray();
});
}
private void Watcher_Updated(Windows.Devices.Enumeration.DeviceWatcher sender, DeviceInformationUpdate args)
{
// TODO: notify devices
}
private void Watcher_Updated(Windows.Devices.Enumeration.DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformationUpdate args)
{
}
private void Watcher_Stopped(Windows.Devices.Enumeration.DeviceWatcher sender, object args)
{
subject.OnCompleted();
}
