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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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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
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