Enables an application to use a Media Foundation transform (MFT) that has restrictions on its use.
When to implement
Implement this interface if you are writing an MFT and want to restrict which applications can use it.
Microsoft does not provide an implementation of this interface.
The IMFFieldOfUseMFTUnlock interface inherits from the IUnknown interface. IMFFieldOfUseMFTUnlock also has these types of members:
The IMFFieldOfUseMFTUnlock interface has these methods.
Unlocks an MFT so that the application can use it.
If you register an MFT that requires unlocking, include the MFT_ENUM_FLAG_FIELDOFUSE flag when you call the MFTRegister function.
Minimum supported client
|Windows 7 [desktop apps only]|
Minimum supported server
|Windows Server 2008 R2 [desktop apps only]|