VioModeWait

#define INCL_VIO

USHORT  rc = VioModeWait(RequestType, NotifyType, Reserved);

USHORT           RequestType;   /* Request type */
PUSHORT          NotifyType;    /* Notify type (returned) */
USHORT           Reserved;      /* Reserved (must be zero) */

USHORT           rc;            /* return code */