Alternate characters at bottem right hand corner.

[T. Kramer]

How do I get an alternate character at the bottem right hand corner of
either the SCO Xenix ansi or dec vt100 terminals using curses? I want to
place a bottem right hand corner character at row 25 column 80 for an ansi
terminal or row 24 column 80 for a vt100 terminal. All other positions on
the screen work fine.

When using the tput smacs command it works ok but not via a c program that
uses curses to switch the terminal into alternate character mode.

Has anybody out there got a solution?