- The setsyx routine sets the virtual screen cursor to y, x. If y and x
- are both -1, then leaveok is set. The two routines getsyx and setsyx
- are designed to be used by a library routine, which manipulates
- curses windows but does not want to change the current position of the
- program cursor. The library routine would call getsyx at the
- beginning, do its manipulation of its own windows, do a wnoutrefresh on
- its windows, call setsyx, and then call doupdate.