IDrmPort interface is used by a WaveCyclic or WavePci miniport driver to manage DRM-protected content (see Digital Rights Management). The port driver implements this interface and exposes it to the miniport driver. In Windows XP and later, the WaveCyclic and WavePci port drivers support this interface. To determine whether a port driver supports the
IDrmPort interface, a miniport driver calls the port (IPortWaveCyclic or IPortWavePci) object's QueryInterface method with REFIID IID_IDrmPort.
IDrmPort inherits from the IUnknown interface.
In addition to the methods that
IDrmPort inherits from the IUnknown interface,
IDrmPort supports the following methods:
For more information about
IDrmPort, see Content IDs and Content Rights.