MF_MEDIA_ENGINE_NEEDKEY_CALLBACK attribute

Attribute which is passed in the IMFMediaEngineNeedKeyNotify to the media engine on creation.

Data type

IMFMediaEngineNeedKeyNotify* stored as IUnknown*

Get/set

To get this attribute, call IMFAttributes::GetUnknown.

To set this attribute, call IMFAttributes::SetUnknown.

Remarks

The value of this attribute is a pointer to the IMFMediaEngineNeedKeyNotify interface, implemented by the application.

Requirements

Requirement Value
Minimum supported client
Windows 8.1 [desktop apps only]
Minimum supported server
Windows Server 2012 R2 [desktop apps only]
IDL
Mfmediaengine.idl

See also

Alphabetical List of Media Foundation Attributes