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

Requirement	Value
Minimum supported client	Windows 7 [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 R2 [desktop apps | UWP apps]
Header	Mfapi.h

See also

Alphabetical List of Media Foundation Attributes

Asynchronous MFTs

Event Attributes