{"json_modified": "2016-05-16T02:07:35.806138", "uuid": "4202969b-7b76-4e53-a3e8-a635a22572ee", "title": "Window.onvrdisplaypresentchange", "url": "/en-US/docs/Web/API/Window/onvrdisplaypresentchange", "tags": ["API", "onvrdisplaypresentchange", "VR", "Reference", "Property", "Experimental", "Window", "events", "Events", "WebVR", "Api", "Virtual Reality"], "translations": [], "modified": "2016-05-16T02:07:04", "label": "Window.onvrdisplaypresentchange", "localization_tags": [], "locale": "en-US", "id": 184970, "last_edit": "2016-05-16T02:07:01", "summary": "The <strong><code>onvrdisplaypresentchange</code></strong> property of the <a href=\"/en-US/docs/Web/API/SpeechSynthesis\" title=\"The SpeechSynthesis interface of the Web Speech API is the controller interface for the speech service; this can be used to retrieve information about the synthesis voices available on the device, start and pause speech, and other commands besides.\"><code>SpeechSynthesis</code></a> interface represents an event handler that will run when the presenting state of a VR device changes \u2014 i.e. goes from presenting to not presenting, or vice versa (when the <code><a href=\"/en-US/docs/Web/Events/onvrdisplaypresentchange\" title=\"/en-US/docs/Web/Events/onvrdisplaypresentchange\">onvrdisplaypresentchange</a></code> event fires).", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Examples", "title": "Examples"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/Window/onvrdisplaypresentchange", "review_tags": []}