IWMDRMLicenseQuery interface
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The IWMDRMLicenseQuery interface enables applications to query the rights and license state for a protected file. This interface uses the Key ID to perform queries on the local license store.
To obtain an instance of this interface, call IWMDRMProvider::CreateObject. Pass IID_IWMDRMLicenseQuery as the riid parameter.
Members
The IWMDRMLicenseQuery interface inherits from the IUnknown interface. IWMDRMLicenseQuery also has these types of members:
Methods
The IWMDRMLicenseQuery interface has these methods.
| Method | Description |
|---|---|
| QueryActionAllowed | Queries the local license store for permissions to perform actions by Key ID. |
| QueryLicenseState | Queries the local license store for license state data by Key ID and specific rights. |
| SetActionAllowedQueryParams | Sets environmental parameters to improve the accuracy of license queries. |
Remarks
The methods of IWMDRMLicenseQuery do not provide information about individual licenses. Instead, the license data is aggregated by the DRM subsystem before the query results are returned.
See also
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