This structure contains fields for the SHC_SEEK message.
typedef struct _PARM_SEEK {
ULONG ulFunction; /* Handler command function. */
HID hid; /* Handler ID. */
HSTREAM hstream; /* Handle of event to enable. */
ULONG ulFlags; /* Seek flags. */
LONG lSeekPoint; /* Seek to point, MMTIME or other. */
} PARM_SEEK;
typedef PARM _ SEEK FAR * PPARM _ SEEK ;