Reading Metadata at Playback
[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Both the asynchronous reader object and the synchronous reader object can read the metadata from the header of a loaded ASF file. When reading files, the metadata attributes are all read-only. Both reader objects can be queried for the IWMHeaderInfo and IWMHeaderInfo2 interfaces.
For more information about accessing metadata, see Working with Metadata.
Related topics