{"json_modified": "2016-10-21T17:53:25.783623", "uuid": "8a79e65c-f502-4a2e-b974-ac5b5ac15b66", "title": "MediaDevices.ondevicechange", "url": "/en-US/docs/Web/API/MediaDevices/ondevicechange", "tags": ["Event Handler", "API", "ondevicechanged", "MediaDevices", "Reference", "Property", "Audio", "Video", "video", "Media Capture and Streams API", "Media", "audio"], "translations": [], "modified": "2016-10-21T17:53:25", "label": "MediaDevices.ondevicechange", "localization_tags": [], "locale": "en-US", "id": 196823, "last_edit": "2016-10-21T17:53:15", "summary": "The <strong><code>MediaDevices.ondevicechange</code></strong> property is an <a href=\"/en-US/docs/Web/API/EventHandler\" title=\"A possible way to get notified of Events of a particular type (such as click) for a given object is to specify an&#xA0;event handler using:\"><code>EventHandler</code></a> which specifies a function to be called when the <code><a href=\"/en-US/docs/Web/Events/devicechange\" title=\"/en-US/docs/Web/Events/devicechange\">devicechange</a></code> event occurs on a <a href=\"/en-US/docs/Web/API/MediaDevices\" title=\"The MediaDevices interface provides access to connected media input devices like cameras and microphones, as well as screen sharing. In essence, it lets you obtain access to any hardware source of media data.\"><code>MediaDevices</code></a> instance. This happens whenever the set of media devices available to the <a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/user_agent\" title=\"user agent: A user agent is a computer program representing a person, for example, a browser in a Web context.\">user agent</a> and, by extension, to the web site or app. You can at any time use <a href=\"/en-US/docs/Web/API/MediaDevices/enumerateDevices\" title=\"The MediaDevices.enumerateDevices() method collects information about the media input and output devices available on the system.\"><code>enumerateDevices()</code></a> to get the updated list of available devices.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Value", "title": "Value"}, {"id": "Example", "title": "Example"}, {"id": "HTML_content", "title": "HTML content"}, {"id": "CSS_content", "title": "CSS content"}, {"id": "JavaScript_content", "title": "JavaScript content"}, {"id": "Other_code", "title": "Other code"}, {"id": "Getting_and_drawing_the_device_list", "title": "Getting and drawing the device list"}, {"id": "Handling_device_list_changes", "title": "Handling device list changes"}, {"id": "Result", "title": "Result"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/MediaDevices/ondevicechange", "review_tags": []}