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Mutual Exclusion Types

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[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 It has been superseded by Source Reader and Sink Writer.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.]

You can use mutual exclusion types to identify the nature of a mutual exclusion object in a profile. Mutual exclusion types are used as parameters for IWMMutualExclusion::GetType and IWMMutualExclusion::SetType.

The following table lists the identifiers for mutual exclusion types.

Mutual exclusion type constant GUID
CLSID_WMMUTEX_Language D6E22A00-35DA-11D1-9034-00A0C90349BE
CLSID_WMMUTEX_Bitrate D6E22A01-35DA-11D1-9034-00A0C90349BE
CLSID_WMMUTEX_Presentation D6E22A02-35DA-11D1-9034-00A0C90349BE
CLSID_WMMUTEX_Unknown D6E22A03-35DA-11D1-9034-00A0C90349BE

 

GUID Values