类：VolumeRequestData
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最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003e\u003ccode\u003eVolumeRequestData\u003c/code\u003e is used for \u003ccode\u003eSET_VOLUME\u003c/code\u003e media event requests, allowing senders to adjust the volume on the receiver.\u003c/p\u003e\n"],["\u003cp\u003eIt inherits properties like \u003ccode\u003erequestId\u003c/code\u003e, \u003ccode\u003emediaSessionId\u003c/code\u003e, and \u003ccode\u003ecustomData\u003c/code\u003e from \u003ccode\u003eRequestData\u003c/code\u003e for request management and application-specific data.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003evolume\u003c/code\u003e property is a crucial part of this request, specifying the desired volume level using a \u003ccode\u003ecast.framework.messages.Volume\u003c/code\u003e object.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can leverage \u003ccode\u003esequenceNumber\u003c/code\u003e to synchronize queue commands and ensure consistency in handling media playback requests.\u003c/p\u003e\n"]]],["`VolumeRequestData` is a class for media event requests to set volume. It extends `RequestData` and includes properties like `customData`, enabling application-specific data exchange, and `mediaSessionId`, to specify the session for the request. It also contains `requestId` for request-response correlation, `sequenceNumber` for synchronizing queue commands, and `volume`, which represents the media stream volume to be set. The class facilitates volume control operations within the media framework.\n"],null,["# Class: VolumeRequestData\n\ncast.[framework](/cast/docs/reference/web_receiver/cast.framework).[messages](/cast/docs/reference/web_receiver/cast.framework.messages).VolumeRequestData\n==========================================================================================================================================================\n\nclass static\n\nMedia event SET_VOLUME request data.\n\nConstructor\n-----------\n\n### VolumeRequestData\n\nnew\nVolumeRequestData()\n\nExtends\n: [cast.framework.messages.RequestData](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData)\n\nProperties\n----------\n\n### customData\n\n(non-null Object or undefined)\n\nApplication-specific data for this request. It enables the sender and\nreceiver to easily extend the media protocol without having to use a new\nnamespace with custom messages.\n\nInherited from\n: [cast.framework.messages.RequestData#customData](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#customData)\n\n### mediaSessionId\n\n(number or undefined)\n\nId of the media session that the request applies to.\n\nInherited from\n: [cast.framework.messages.RequestData#mediaSessionId](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#mediaSessionId)\n\n### requestId\n\nnumber\n\nId of the request, used to correlate request/response.\n\nInherited from\n: [cast.framework.messages.RequestData#requestId](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#requestId)\n\n### sequenceNumber\n\n(number or undefined)\n\nA number to synchronize all queue commands.\nIf provided for a queue command, the SDK will verify the queue latest\nsequence number match the request.\nCurrent sequenceNumber is provided as part of outgoing queue changed\nmessages.\n\nInherited from\n: [cast.framework.messages.RequestData#sequenceNumber](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#sequenceNumber)\n\n### volume\n\nnon-null [cast.framework.messages.Volume](/cast/docs/reference/web_receiver/cast.framework.messages.Volume)\n\nThe media stream volume."]]
