MF_EVENT_MFT_CONTEXT attribute

Contains a caller-defined value for an METransformMarker event.

Data type

ULONG_PTR stored as UINT64

Syntax

GUID MF_EVENT_MFT_CONTEXT = {0xb7cd31f1,0x899e,0x4b41,{0x80,0xc9,0x26,0xa8,0x96,0xd3,0x29,0x77} }  

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

Header: Declared in mfapi.h.