This data structure is used in the GreEscape DEVESC_QUERYSIZE call.

typedef struct _QUERYSIZE {
  ULONG          cb;                            /*  Size of the entire structure. */
  ULONG          ulSizeNeeded;                  /*  Size returned. */
  QUERYTUPLE     aTuples[1];  /*  Start of the tuple list. */
} QUERYSIZE;

typedef   QUERYSIZE   * PQUERYSIZE ;