Media State Aggregation Service Reference
The Ehmediastatus.idl file that is included in the Windows Media Center SDK defines the interfaces, structures, and enumeration types that are used by a media status sink component.
Note The Media State Aggregation Service API has been deprecated.
To receive status information from the media state aggregation service (MSAS), a driver or other software component must implement the interfaces below:
|IMediaStatusSession||Passes media status properties to the media status sink.|
|IMediaStatusSink||Initializes the media status sink and creates a media status session.|
A driver or other software component can use the following structures and enumeration types to process media status notifications that are sent to its media status sink:
|Structure or Enumeration Type||Description|
|MEDIASTATUSPROPERTY||Contains a media status property that has changed.|
|MEDIASTATUSPROPERTYTAG||Contains values that identify properties of media status notifications.|