| /* |
| * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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| */ |
| |
| package javax.sound.midi; |
| |
| import java.util.EventListener; |
| |
| /** |
| * The {@code ControllerEventListener} interface should be implemented by |
| * classes whose instances need to be notified when a {@link Sequencer} has |
| * processed a requested type of MIDI control-change event. To register a |
| * {@code ControllerEventListener} object to receive such notifications, invoke |
| * the |
| * {@link Sequencer#addControllerEventListener(ControllerEventListener, int[]) |
| * addControllerEventListener} method of {@code Sequencer}, specifying the types |
| * of MIDI controllers about which you are interested in getting control-change |
| * notifications. |
| * |
| * @author Kara Kytle |
| * @see MidiChannel#controlChange(int, int) |
| */ |
| public interface ControllerEventListener extends EventListener { |
| |
| /** |
| * Invoked when a {@link Sequencer} has encountered and processed a |
| * control-change event of interest to this listener. The event passed in is |
| * a {@code ShortMessage} whose first data byte indicates the controller |
| * number and whose second data byte is the value to which the controller |
| * was set. |
| * |
| * @param event the control-change event that the sequencer encountered in |
| * the sequence it is processing |
| * @see Sequencer#addControllerEventListener(ControllerEventListener, int[]) |
| * @see MidiChannel#controlChange(int, int) |
| * @see ShortMessage#getData1 |
| * @see ShortMessage#getData2 |
| */ |
| void controlChange(ShortMessage event); |
| } |