IMFASFMutualExclusion::GetType method (wmcontainer.h)

Article
02/22/2024

Retrieves the type of mutual exclusion represented by the Advanced Systems Format (ASF) mutual exclusion object.

Syntax

HRESULT GetType(
  [out] GUID *pguidType
);

Parameters

[out] pguidType

A variable that receives the type identifier. For a list of predefined mutual exclusion type constants, see ASF Mutual Exclusion Type GUIDs.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.

Remarks

Sometimes, content must be made mutually exclusive in more than one way. For example, a video file might contain audio streams of several bit rates for each of several languages. To handle this type of complex mutual exclusion, you must configure more than one ASF mutual exclusion object. For more information, see IMFASFMutualExclusion::AddRecord.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	wmcontainer.h
Library	Mfuuid.lib