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MF_TOPONODE_DRAIN attribute

Specifies when a transform is drained.

Data type

UINT32

Remarks

This attribute applies to transform nodes (MF_TOPOLOGY_TRANSFORM_NODE).

The value of the attribute is a member of the MF_TOPONODE_DRAIN_MODE enumeration. If this attribute is not set, the default value is MF_TOPONODE_DRAIN_DEFAULT.

Draining is performed by calling IMFTransform::ProcessMessage on the transform with the MFT_MESSAGE_COMMAND_DRAIN message. For more information, see MFT_MESSAGE_TYPE enumeration.

The GUID constant for this attribute is exported from mfuuid.lib.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Mfidl.h

See also

IMFAttributes::GetUINT32
IMFAttributes::SetUINT32
IMFTopologyNode
Topology Node Attributes

 

 

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