Stop | stop method

PeerWatcher.Stop | stop method

Stop dynamically searching for peer apps within wireless range.

Syntax


peerWatcher.stop();

Parameters

This method has no parameters.

Remarks


private PeerWatcher _peerWatcher;
private bool _peerWatcherIsRunning = false;
private bool _peerFinderStarted = false;

// The list of peers discovered by the PeerWatcher.
ObservableCollection<PeerInformation> _discoveredPeers = new ObservableCollection<PeerInformation>();
void PeerFinder_StartPeerWatcher(object sender, RoutedEventArgs e)
{
    if (!_peerFinderStarted)
    {
        // PeerFinder must be started first.
        return;
    }

    if (_peerWatcherIsRunning)
    {
        // PeerWatcher is already running.
        return;
    }

    try
    {
        if (_peerWatcher == null)
        {
            _peerWatcher = PeerFinder.CreateWatcher();

            // Add PeerWatcher event handlers. Only add handlers once.
            _peerWatcher.Added += PeerWatcher_Added;
            _peerWatcher.Removed += PeerWatcher_Removed;
            _peerWatcher.Updated += PeerWatcher_Updated;
            _peerWatcher.EnumerationCompleted += PeerWatcher_EnumerationCompleted;
            _peerWatcher.Stopped += PeerWatcher_Stopped;
        }

        // Empty the list of discovered peers.
        _discoveredPeers.Clear();

        // Start the PeerWatcher.
        _peerWatcher.Start();

        _peerWatcherIsRunning = true;
    }
    catch (Exception ex)
    {
        // Exceptions can occur if PeerWatcher.Start is called multiple times or
        // PeerWatcher.Start is called the PeerWatcher is stopping.
    }
}

protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
    if (_peerWatcher != null)
    {
        // Remove event handlers.
        _peerWatcher.Added -= PeerWatcher_Added;
        _peerWatcher.Removed -= PeerWatcher_Removed;
        _peerWatcher.Updated -= PeerWatcher_Updated;
        _peerWatcher.EnumerationCompleted -= PeerWatcher_EnumerationCompleted;
        _peerWatcher.Stopped -= PeerWatcher_Stopped;

        _peerWatcher = null;
    }
}



var _peerWatcher;
var _peerWatcherIsRunning = false;
var _peerFinderStarted = false;

// The list of peers discovered by the PeerWatcher.
var _discoveredPeers = new Array();

function peerFinder_StartPeerWatcher() {
    if (!_peerFinderStarted) {
        // PeerFinder must be started first.
       return;
    }

    if (_peerWatcherIsRunning) {
        // PeerWatcher is already running.
        return;
    }

    try {
        if (!_peerWatcher)
        {
            _peerWatcher = PeerFinder.createWatcher();

            // Add PeerWatcher event handlers. Only add handlers once.
            peerWatcher.addEventListener("added", peerWatcher_Added); 
            peerWatcher.addEventListener("removed", peerWatcher_Removed); 
            peerWatcher.addEventListener("updated",  peerWatcher_Updated); 
            peerWatcher.addEventListener("enumerationcompleted", peerWatcher_EnumerationCompleted); 
            peerWatcher.addEventListener("stopped", peerWatcher_Stopped); 
        }

        // Empty the list of discovered peers.
        _discoveredPeers = new Array();

        // Start the PeerWatcher.
        _peerWatcher.start();

        _peerWatcherIsRunning = true;
    }
    catch (ex)
    {
        // Exceptions can occur if PeerWatcher.Start is called multiple times or
        // PeerWatcher.Start is called the PeerWatcher is stopping.
    }
}
    
function cleanup() {
    if (_peerWatcher) {
        // Remove event handlers.
        peerWatcher.removeEventListener("added", peerWatcher_Added); 
        peerWatcher.removeEventListener("removed", peerWatcher_Removed); 
        peerWatcher.removeEventListener("updated", peerWatcher_Updated); 
        peerWatcher.removeEventListener("enumerationCompleted", peerWatcher_EnumerationCompleted); 
        peerWatcher.removeEventListener("stopped", peerWatcher_Stopped); 

        _peerWatcher = null;
    }
}



function peerFinder_StopPeerWatcher() {
    try {
        _peerWatcher.Stop();
    }
    catch (ex) {
        // Handle the exception.
    }
}


Requirements (Windows 10 device family)

Device family

Universal, introduced version 10.0.10240.0 [for Xbox, see UWP features that aren't yet supported on Xbox]

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

Windows.Networking.Proximity
Windows::Networking::Proximity [C++]

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8.1

Minimum supported server

Windows Server 2012 R2

Minimum supported phone

Windows Phone 8.1 [Windows Phone Silverlight 8.1 and Windows Runtime apps]

Namespace

Windows.Networking.Proximity
Windows::Networking::Proximity [C++]

Metadata

Windows.winmd

See also

PeerWatcher
Proximity and Tapping (JavaScript)
Proximity and Tapping (C#/VB/C++)
Samples
Proximity sample

 

 

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