https://docs.oracle.com/cd/E86824_01/html/E54767/addnstr-3xcurses.html
addnstr - man pages section 3: Curses Library Functions
addnstr , addstr , mvaddnstr , mvaddstr , mvwaddnstr , mvwaddstr , waddnstr , waddstr - add a multi-byte character string (without rendition) to a window
man pagessectioncurseslibraryfunctions