gid (GID) - input
ID of the GRADD.
ulFunction (ULONG) - input
Set equal to GHI_CMD_LINE.
pIn (PVOID) - input
Pointer to a LINEINFO or LINEINFO2 data structure.
pOut (PVOID) - output
NULL; no output structure needed.
rc (ULONG) - returns
Return codes.
RC_SIMULATE
RC_SUCCESS
RC_ERROR