/*******************************************************************************
 * Copyright (c) 2000, 2011 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.events;


import org.eclipse.swt.internal.SWTEventListener;

/**
 * Classes which implement this interface provide methods
 * that deal with the events that are generated as keys
 * are pressed on the system keyboard.
 * <p>
 * After creating an instance of a class that implements
 * this interface it can be added to a control using the
 * <code>addKeyListener</code> method and removed using
 * the <code>removeKeyListener</code> method. When a
 * key is pressed or released, the appropriate method will
 * be invoked.
 * </p>
 *
 * @see KeyAdapter
 * @see KeyEvent
 */
public interface KeyListener extends SWTEventListener {

/**
 * Sent when a key is pressed on the system keyboard.
 *
 * @param e an event containing information about the key press
 */
public void keyPressed(KeyEvent e);

/**
 * Sent when a key is released on the system keyboard.
 *
 * @param e an event containing information about the key release
 */
public void keyReleased(KeyEvent e);
}
