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 qattreos                                                              QWIKC
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 Function       Changes just the attribute in a rows-by-columns block on the
                current screen starting at the EOS marker.
 Syntax         void qattreos( unsigned char rows, unsigned char cols,
                               int attr );
 Remarks        The upper left corner of the block starts at the previously
                set EOS marker and the block size is rows by cols.  If
                SAMEATTR is used for attr or if rows or cols is zero, then
                nothing is written.
 Return value   None.
 Screens        All video pages and virtual screens.
 EOS            Updated.
 Restrictions   Stay within the screen limits.
 Example        To highlight a 20 column data entry field at the EOS marker
                with yellow on magenta:

                  qattreos( 1, 20, YELLOW+MAGENTA_BG );