This structure contains fields for the MCI_SET message for amp-mixer devices.
typedef struct _MCI_AMP_SET_PARMS {
HWND hwndCallback; /* Window handle. */
ULONG ulTimeFormat; /* Time format. */
ULONG ulSpeedFormat; /* Speed format. */
ULONG ulAudio; /* Audio attribute flags. */
ULONG ulLevel; /* Level setting. */
ULONG ulOver; /* Delay time. */
ULONG ulItem; /* Item field. */
ULONG ulValue; /* Connector. */
} MCI_AMP_SET_PARMS;
typedef MCI _ AMP _ SET _ PARMS * PMCI _ AMP _ SET _ PARMS ;