This structure contains fields for the MCI_CONNECTION message.
typedef struct _MCI_CONNECTION_PARMS { HWND hwndCallback; /* Window handle. */ ULONG ulConnectorType; /* Connector type. */ ULONG ulConnectorIndex; /* Connector index. */ PSZ pszAlias; /* Secondary device alias. */ USHORT usToDeviceID; /* ID of secondary device. */ USHORT usReserved0; /* Reserved. */ } MCI_CONNECTION_PARMS; typedef MCI _ CONNECTION _ PARMS * PMCI _ CONNECTION _ PARMS ;