curs_opaque(3x) curs_opaque(3x)
is_cleared, is_idlok, is_idcok, is_immedok, is_keypad, is_leaveok,
is_nodelay, is_notimeout, is_pad, is_scrollok, is_subwin, is_syncok,
wgetdelay, wgetparent, wgetscrreg - curses window properties
#include <curses.h>
bool is_cleared