ControllerEventListener

javax.sound.midi

Interface ControllerEventListener

All Superinterfaces:

EventListener
```
public interface ControllerEventListener
extends EventListener
```
The ControllerEventListener interface should be implemented by classes whose instances need to be notified when a Sequencer has processed a requested type of MIDI control-change event. To register a ControllerEventListener object to receive such notifications, invoke the addControllerEventListener method of Sequencer, specifying the types of MIDI controllers about which you are interested in getting control-change notifications.

See Also:

MidiChannel.controlChange(int, int)

Method Summary

All Methods

Instance Methods

Abstract Methods
Modifier and Type	Method and Description
`void`	`controlChange(ShortMessage event)` Invoked when a `Sequencer` has encountered and processed a control-change event of interest to this listener.

- Method Detail
  - controlChange
```
void controlChange(ShortMessage event)
```
    Invoked when a Sequencer has encountered and processed a control-change event of interest to this listener. The event passed in is a ShortMessage whose first data byte indicates the controller number and whose second data byte is the value to which the controller was set.
    
    Parameters:
    
    event - the control-change event that the sequencer encountered in the sequence it is processing
    
    See Also:
    
    Sequencer.addControllerEventListener(ControllerEventListener, int[]), MidiChannel.controlChange(int, int), ShortMessage.getData1(), ShortMessage.getData2()