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, except for Shared 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()-
Returns a new
HIDConnectionEventobject. 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.deviceRead only-
Returns the
HIDDeviceinstance 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
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| WebHID API # dom-hidconnectionevent |
Browser compatibility
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HIDConnectionEvent
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HIDConnectionEvent() constructor
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device
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Available in workers
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- Has more compatibility info.