This message queries for the currently selected value set item indicated by the values of the usRow and usColumn fields.

param1
     ULONG   ulReserved  /*  Reserved value, should be 0. */

param2
     ULONG   ulReserved  /*  Reserved value, should be 0. */

returns
     USHORT  usRow       /*  Row index. */
     USHORT  usColumn    /*  Column index. */