Method OnQueryTextFinished

src/window_gui.h:786–786

* The query window opened from this window has closed. * @param str the new value of the string, \c std::nullopt if the window * was cancelled or an empty string when the default * button was pressed, i.e. \c str->empty(). */

	 *            button was pressed, i.e. \c str->empty().
	 */
	virtual void OnQueryTextFinished([[maybe_unused]] std::optional<std::string> str) {}

	/**
	 * Some data on this window has become invalid.