Method: Curses.get_char

Defined in:
ext/curses/curses.c

.get_char ⇒ Object

Read and returns a character or function key from the window. A single or multibyte character is represented by a String, and a function key is represented by an Integer. Returns nil if no input is ready.

See Curses::Key to all the function KEY_* available



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# File 'ext/curses/curses.c', line 4811

static VALUE
curses_get_char(VALUE obj)
{
#ifdef HAVE_GET_WCH
    struct get_wch_arg arg;

    curses_stdscr();
    rb_thread_call_without_gvl(get_wch_func, &arg, RUBY_UBF_IO, 0);
    switch (arg.retval) {
    case OK:
  return keyboard_uint_chr(arg.ch);
    case KEY_CODE_YES:
  return key_code_value(arg.ch);
    }
    return Qnil;
#else
    int c;

    curses_stdscr();
    rb_thread_call_without_gvl(getch_func, &c, RUBY_UBF_IO, 0);
    if (c > 0xff) {
  return INT2NUM(c);
    }
    else if (c >= 0) {
  return keyboard_uint_chr(c);
    }
    else {
  return Qnil;
    }
#endif
}