Here you can find the source of getParentFrame(JComponent c)
public static JFrame getParentFrame(JComponent c)
//package com.java2s; /**//from w ww. j av a2 s . c o m * Copyright (c) 2004-2007 Rensselaer Polytechnic Institute * Copyright (c) 2007 NEES Cyberinfrastructure Center * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * For more information: http://nees.rpi.edu/3dviewer/ */ import javax.swing.*; import java.awt.*; public class Main { public static JFrame getParentFrame(JComponent c) { Container parent = c.getParent(); if (parent == null) return null; else if (parent instanceof JFrame) return (JFrame) parent; else return getParentFrame((JComponent) parent); } }