IMFFieldOfUseMFTUnlock::Unlock method

Unlocks a Media Foundation transform (MFT) so that the application can use it.

Syntax


HRESULT Unlock(
  [in]  IUnknown *pUnkMFT
);

Parameters

pUnkMFT [in]

A pointer to the IUnknown interface of the MFT.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

This method authenticates the caller, using a private communication channel between the MFT and the object that implements the IMFFieldOfUseMFTUnlock interface. The details of the communication depend entirely on the implementation.

Requirements

Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]

Header

Mfidl.h

See also

Field of Use Restrictions
IMFFieldOfUseMFTUnlock

 

 

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