Toolkit.java 文件源码

void dispatchAWTEvent(AWTEvent event) {
    AWTEvent.EventDescriptor descriptor = eventTypeLookup.getEventDescriptor(event);
    if (descriptor == null) {
        return;
    }
    for (AWTEventListenerProxy proxy : listeners.getUserListeners()) {
        if ((proxy.getEventMask() & descriptor.eventMask) != 0) {
            proxy.eventDispatched(event);
        }
    }
}