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MF_EVENT_MFT_CONTEXT attribute

Contains a caller-defined value for an METransformMarker event.

Data type

ULONG_PTR stored as UINT64

Get/set

To get this attribute, call IMFAttributes::GetUINT64.

To set this attribute, call IMFAttributes::SetUINT64.

Applies to

IMFMediaEvent

Remarks

This attribute is used with the METransformMarker event. The value of the attribute is taken from the ulParam parameter of the IMFTransform::ProcessMessage method.

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

Requirements

Minimum supported client

Windows 7 [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 R2 [desktop apps | Windows Store apps]

Header

Mfapi.h

See also

Alphabetical List of Media Foundation Attributes
Asynchronous MFTs
Event Attributes

 

 

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