GHI_CMD_EVENT - Syntax

Description: 

GHI_CMD_EVENT is optional and is called to notify a GRADD of specific 
events. 

#include <GRADD.h>

GID      gid;         /*  ID of the GRADD. */
ULONG    ulFunction;  /*  Set equal to GHI_CMD_EVENT. */
PVOID    pIn;         /*  Pointer to an HWEVENTIN data structure. */
PVOID    pOut;        /*  NULL; no output structure needed. */
ULONG    rc;          /*  Return codes. */

rc = HWENTRY(gid, ulFunction, pIn, pOut);