GHI_CMD_SETMODE - Syntax

Description: 

GHI_CMD_SETMODE is mandatory. The GRADD is expected to set the video mode, 
given an ID of the chosen mode. 

#include <GRADD.h>

GID      gid;         /*  ID of the GRADD. */
ULONG    ulFunction;  /*  Set equal to GHI_CMD_SETMODE. */
PVOID    pIn;         /*  Pointer to PULONG containing the ID of the requested mode. */
PVOID    pOut;        /*  NULL. */
ULONG    rc;          /*  Return codes. */

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