|Microsoft DirectX 9.0|
The SetMedium method configures the medium on which a particular pin sends data.
HRESULT SetMedium( ULONG ulPinId, REGPINMEDIUM* pMedium );
[in] Specifies the identifier of the pin on which to set the medium.
[in] Pointer to the medium on which the pin will send data.
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
A medium is a structure that identifies a hardware data path between two devices on the host system. They can be devices on the same card, such as a crossbar and a tuner on a TV card; devices on separate cards; or external devices. Kernel-mode filters based on the Windows Driver Model can use mediums instead of media types to determine pin connections.