IWMDRMDeviceApp::ProcessMeterResponse
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The ProcessMeterResponse method resets some or all of the metering counts on a device, after data from the device has been sent to and processed by the server.
Syntax
HRESULT ProcessMeterResponse(IWMDMDevice*pDevice,BYTE*pbResponse,DWORDcbResponse,DWORD*pdwFlags);
Parameters
pDevice
[in] Pointer to an IWMDMDevice object.
pbResponse
[in] Response received from a metering server, after sending data generated using GenerateMeterChallenge.
cbResponse
[in] Size of pbResponse, in bytes.
pdwFlags
[out] A DWORD from the following table indicating whether there is more metering data on the device that needs to be processed.
| Flag | Description |
| WMDRM_METER_RESPONSE_ALL | All metering data has been processed. |
| WMDRM_METER_RESPONSE_PARTIAL | Additional metering data needs to be processed. |
Return Values
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
| S_OK | The method succeeded. |
| DRM_E_INVALIDARG | One or more arguments are not valid. |
| Errors from the device | Any of a number of device errors. |
| Errors from the DRM Client | Any of a number of internal DRM client errors. |
| NS_E_DEVICE_NOT_WMDRM_DEVICE | The specified device is not a Windows Media DRM–compatible device. |
Remarks
More information on metering, including code examples, can be found in the whitepaper Metering the Use of Digital Media Content with Windows Media DRM 10on the MSDN Web site.
Requirements
Header: Requires both WMDRMDeviceApp.h and wmdrmdeviceapp_i.c (built from WMDRMDeviceApp.idl).
Library: mssachlp.lib
See Also