Method: Curses.unget_char

Defined in:
ext/curses/curses.c

.unget_char(ch) ⇒ Object

Places ch back onto the input queue to be returned by the next call to Curses.get_char etc.

There is just one input queue for all windows.



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# File 'ext/curses/curses.c', line 4740

static VALUE
curses_unget_char(VALUE obj, VALUE ch)
{
    ID id_ord;
    unsigned int c;

    curses_stdscr();
    if (FIXNUM_P(ch)) {
  ungetch(NUM2UINT(ch));
    }
    else {
  StringValue(ch);
  CONST_ID(id_ord, "ord");
  c = NUM2UINT(rb_funcall(ch, id_ord, 0));
#ifdef HAVE_UNGET_WCH
  unget_wch(c);
#else
  if (c > 0xff) {
      rb_raise(rb_eRangeError, "Out of range: %u", c);
  }
  ungetch(c);
#endif
    }
    return Qnil;
}