This structure contains fields for the MCI_SET message for devices that do not have device-specific extensions.
typedef struct _MCI_SET_PARMS {
HWND hwndCallback; /* Window handle. */
ULONG ulTimeFormat; /* Time format. */
ULONG ulSpeedFormat; /* Speed format. */
ULONG ulAudio; /* Channel number. */
ULONG ulLevel; /* Volume level. */
ULONG ulOver; /* Delay time. */
ULONG ulItem; /* Item field. */
ULONG ulValue; /* Value for item flag. */
} MCI_SET_PARMS;
typedef MCI _ SET _ PARMS * PMCI _ SET _ PARMS ;