On Thu, 6 Sep 2007, Tim Allen wrote:
According to the ncurses announcement page, "Unlike SVr3 curses,
ncurses can write to the rightmost-bottommost corner of the screen
if your terminal has an insert-character capability." However, if
you actually try this, mvaddch() returns ERR. Is there some
special function call you have to make in order to get ncurses to
accept bottom-right screen writes? The mvaddch manpage and
numerous Google searches don't seem to mention such a thing.
The move returns OK, but the waddch returns ERR after adding the
character because it attempts to scroll the screen, but cannot.
The manpage for addch does not describe in detail the conditions
which would produce an error, though this behavior is about ten
years old.
(There are several error checks...)