HIDConnectionEvent

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Note: This feature is available in Web Workers.

The HIDConnectionEvent interface of the WebHID API represents HID connection events, and is the event type passed to connect and disconnect event handlers when a device's connection state changes.

Constructor

HIDConnectionEvent() Experimental: Returns a new HIDConnectionEvent object. Typically this constructor is not used as events are created when a device's connection state changes.

Instance properties

This interface also inherits properties from Event.

HIDConnectionEvent.device Read only Experimental: Returns the HIDDevice instance representing the device associated with the connection event.

Examples

The following example registers event listeners for connect and disconnect events, then prints the HIDDevice.productName to the console.

navigator.hid.addEventListener("connect", ({ device }) => {
  console.log(`HID connected: ${device.productName}`);
});

navigator.hid.addEventListener("disconnect", ({ device }) => {
  console.log(`HID disconnected: ${device.productName}`);
});

Specifications

Specification
WebHID API # dom-hidconnectionevent

Browser compatibility

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