Seekable
[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 It has been superseded by Source Reader and Sink Writer.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.]
The Seekable attribute is a file-level attribute specifying whether an application can seek to points within the content.
Global Constant
g_wszWMSeekable
Data Type
WMT_TYPE_BOOL
Remarks
This is a coded attribute.
This attribute cannot be duplicated at the file level. If this attribute is used for an individual stream, it will be treated as custom metadata and will not convey its normal meaning to the objects of the Windows Media Format SDK.
The value of this attribute for a file may vary depending upon the object exposing the IWMHeaderInfo or IWMHeaderInfo3 interface used to retrieve it. This is because the reader objects (both synchronous and asynchronous) perform a more thorough check than the metadata editor object does, to ascertain whether you can seek to a point in a file. The Seekable attribute value returned by a reader object is more accurate.
See also
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