VIOSETULINELOC data structure.

typedef struct _VIOSETULINELOC {
  USHORT     cb;        /*  Length of this data structure in bytes. */
  USHORT     type;      /*  Request type = 5, get scan line for underlining. */
  USHORT     scanline;
} VIOSETULINELOC;

typedef   VIOSETULINELOC   * PVIOSETULINELOC ;