VIOCOLORREG data structure.

typedef struct _VIOCOLORREG {
  USHORT     cb;             /*  Length of this data structure in bytes. */
  USHORT     type;           /*  Request type = 3, get color registers. */
  USHORT     firstcolorreg;  /*  First color register. */
  USHORT     numcolorregs;   /*  Number of color registers to get. */
  PCH        colorregaddr;   /*  Area where the color registers are returned. */
} VIOCOLORREG;

typedef   VIOCOLORREG   * PVIOCOLORREG ;