VIOOVERSCAN data structure.

typedef struct _VIOOVERSCAN {
  USHORT     cb;     /*  Length of this data structure in bytes. */
  USHORT     type;   /*  Request type = 1, get overscan. */
  USHORT     color;  /*  Color value. */
} VIOOVERSCAN;

typedef   VIOOVERSCAN   * PVIOOVERSCAN ;