mf-activate-mft-locked-attribute.md

description	ms.assetid	title	ms.topic	ms.date
Specifies whether the Topology Loader will change the media types on a Media Foundation transform (MFT). Applications typically do not use this attribute.	96a99f35-f9db-407e-a4e3-7adc3caccb19	MF_ACTIVATE_MFT_LOCKED attribute (Mfidl.h)	reference	05/31/2018

MF_ACTIVATE_MFT_LOCKED attribute

Specifies whether the Topology Loader will change the media types on a Media Foundation transform (MFT). Applications typically do not use this attribute.

Data type

UINT32

Treat as a Boolean value.

Remarks

If value of this attribute is nonzero, the topology loader will not change the media types on the MFT. The topology loader sets this attribute after it loads the topology.

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

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	Mfidl.h

See also

Alphabetical List of Media Foundation Attributes

IMFAttributes::GetUINT32

IMFAttributes::SetUINT32

Transform Attributes