This structure contains fields for the MCI_SET_SYNC_OFFSET message.
typedef struct _MCI_SYNC_OFFSET_PARMS { HWND hwndCallback; /* Window handle. */ ULONG ulOffset; /* Media offset of current time format. */ } MCI_SYNC_OFFSET_PARMS; typedef MCI _ SYNC _ OFFSET _ PARMS * PMCI _ SYNC _ OFFSET _ PARMS ;