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 ;