Java tutorial
//package com.java2s; /******************************************************************************* * Copyright (c) 2004, 2010 BREDEX GmbH. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * BREDEX GmbH - initial API and implementation and/or initial documentation *******************************************************************************/ import java.awt.Event; import java.awt.Toolkit; import java.awt.event.KeyEvent; import javax.swing.UIManager; public class Main { /** * ID of Metal Look and Feel. */ private static final String METAL_LAF_ID = "Metal"; /** * gives default modifier of the current OS. * * @return meta (command) for OSX, control for Windows/Linux etc */ public static int getSystemDefaultModifier() { if (!(UIManager.getLookAndFeel().getID().equals(METAL_LAF_ID))) { int mask = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask(); if (mask == Event.META_MASK) { return KeyEvent.VK_META; } else if (mask == Event.ALT_MASK) { return KeyEvent.VK_ALT; } } return KeyEvent.VK_CONTROL; } }