https://docs.oracle.com/cd/E86824_01/html/E54767/wechowchar-3curses.html
wechowchar - man pages section 3: Curses Library Functions
curs_addwch , addwch , waddwch , mvaddwch , mvwaddwch , echowchar , wechowchar - add a wchar_t character (with attributes) to a curses window and advance cursor
man pagessectioncurseslibraryfunctions