Here you can find the source of isWinLAF()
public static boolean isWinLAF()
//package com.java2s; /*//from w w w. j a v a 2 s .co m * Copyright (c) 2015 Memorial Sloan-Kettering Cancer Center * * * * Code written by: Christian Lopes * * Authors: Gary Bader, Elena Potylitsine, Chris Sander, Weston Whitaker * * * * 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 * * 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. The software and * * documentation provided hereunder is on an "as is" basis, and * * Memorial Sloan-Kettering Cancer Center * * has no obligations to provide maintenance, support, * * updates, enhancements or modifications. In no type shall the * * Memorial Sloan-Kettering Cancer Center * * be liable to any party for direct, indirect, special, * * incidental or consequential damages, including lost profits, arising * * out of the use of this software and its documentation, even if * * Memorial Sloan-Kettering Cancer Center * * has been advised of the possibility of such damage. 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. */ import javax.swing.UIManager; public class Main { public static boolean isWinLAF() { return UIManager.getLookAndFeel() != null && "Windows".equals(UIManager.getLookAndFeel().getName()); } }