bkgd(p1)
public
Window background manipulation routines.
Set the background property of the current and then
apply the character Integer ch setting
to every character position in that window.
see also the system manual for curs_bkgd(3)
static VALUE
curses_bkgd(VALUE obj, VALUE ch)
{
#ifdef HAVE_BKGD
curses_stdscr();
return (bkgd(NUM2CH(ch)) == OK) ? Qtrue : Qfalse;
#else
return Qfalse;
#endif
}