java 键盘监听，可以不设置交点全局监听。

package com.mx; public class GlobalEventListener { PoolHook pt; public GlobalEventListener() { pt = new PoolHook(this); pt.start(); } protected javax.swing.event.EventListenerList listenerList = new javax.swing.event.EventListenerList(); public void addKeyboardEventListener(KeyboardEventListener listener) { listenerList.add( KeyboardEventListener.class, listener ); } public void removeKeyboardEventListener(KeyboardEventListener listener) { listenerList.remove( KeyboardEventListener.class, listener ); } void keyPressed(KeyboardEvent event) { Object[] listeners = listenerList.getListenerList(); for ( int i = 0; i < listeners.length; i += 2 ) { if ( listeners[ i ] == KeyboardEventListener.class ) { ( (KeyboardEventListener)listeners[i + 1] ).GlobalKeyPressed( event ); } } } void keyReleased(KeyboardEvent event) { Object[] listeners = listenerList.getListenerList(); for ( int i = 0; i < listeners.length; i += 2 ) { if ( listeners[ i ] == KeyboardEventListener.class ) { ( (KeyboardEventListener)listeners[i + 1] ).GlobalKeyReleased( event ); } } } }