is_eq_win? (Xmms::Remote)

    /*
     * Get the visibility of the equalizer window.
     *
     * This method raises an Xmms::Error exception if XMMS is not running.
     *
     * Examples:
     *   puts 'equalizer window visible' if remote.equalizer_visible?
     *   puts 'equalizer window visible' if remote.eq_visible?
     *   puts 'equalizer window visible' if remote.equalizer?
     *   puts 'equalizer window visible' if remote.eq?
     *
     */
    static VALUE xr_is_eq(VALUE self) {