https://docs.oracle.com/cd/E86824_01/html/E54767/getwch-3curses.html
getwch - man pages section 3: Curses Library Functions
curs_getwch , getwch , wgetwch , mvgetwch , mvwgetwch , ungetwch - get (or push back) wchar_t characters from curses terminal keyboard
man pagessectioncurseslibraryfunctions