IMFDXGIBuffer::SetUnknown method (mfobjects.h)

Stores an arbitrary IUnknown pointer in the media buffer object.

Syntax

HRESULT SetUnknown(
  [in] REFIID   guid,
  [in] IUnknown *pUnkData
);

Parameters

[in] guid

The identifier for the IUnknown pointer. This identifier is used as a key to retrieve the value. It can be any GUID value.

[in] pUnkData

A pointer to the IUnknown interface. Set this parameter to NULL to clear a pointer that was previously set.

Return value

This method can return one of these values.

Remarks

To retrieve the pointer from the object, call IMFDXGIBuffer::GetUnknown.

Requirements

See also

IMFDXGIBuffer

IMFDXGIBuffer::GetUnknown