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IWMDRMDeviceApp Interface

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The IWMDRMDeviceApp interface enables metering applications to communicate with devices that support Windows Media DRM 10 for Portable Devices.

In addition to the methods inherited from IUnknown, the IWMDRMDeviceApp interface exposes the following methods.

Method Description
AcquireDeviceData Acquires metering data from the device.
GenerateMeterChallenge Aggregates device metering data for a metering certificate.
ProcessMeterResponse Clears the device metering data.
QueryDeviceStatus Queries the device status.
SynchronizeLicenses Synchronizes the license between the license store on the computer and the license store on the device.

Note   Microsoft recommends that you notify end users if you will be collecting metering data.

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