[This documentation is preliminary and is subject to change.]

Contains classes that support connections between devices that are within close range.

Members

The Windows.Networking.Proximity namespace has these types of members:

• Classes
• Delegates
• Enumerations

Classes

The Windows.Networking.Proximity namespace has these classes.

Delegates

The Windows.Networking.Proximity namespace has these delegates.

Enumerations

The Windows.Networking.Proximity namespace has these enumerations.

Remarks

You can use proximity to connect computers by using a simple tap gesture. If two computers come within 3 centimeters to4 centimeters of each other, or are tapped together, the operating system of each computer detects the other computer. You can then connect the two computers to share content or publish and subscribe to messages. Proximity also supports discovery of peer devices via Wifi-Direct.

Examples

This example shows how you can use the ProximityDevice class to determine when a device enters and leaves proximity.

function id(elementId) {
    return document.getElementById(elementId);
}

var proximityDevice;

function initializeProximityDevice() {
    proximityDevice = Windows.Networking.Proximity.ProximityDevice.getDefault();

    if (proximityDevice) {
        proximityDevice.addEventListener("devicearrived", proximityDeviceArrived);
        proximityDevice.addEventListener("devicedeparted", proximityDeviceDeparted);

        id("messageDiv").innerHTML += "Proximity device initialized.<br />";
    }
    else {
        id("messageDiv").innerHTML += "Failed to initialized proximity device.<br />";
    }
}

function proximityDeviceArrived(device) {
    id("messageDiv").innerHTML += "Proximate device arrived. id = " + device.deviceId + "<br />";
}

function proximityDeviceDeparted(device) {
    id("messageDiv").innerHTML += "Proximate device departed. id = " + device.deviceId + "<br />";
}

Requirements

See also

Proximity and Tapping (JavaScript)

Proximity and Tapping (C#/VB/C++)

Samples

Proximity sample

Build date: 5/22/2012