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77 lines
2.0 KiB
77 lines
2.0 KiB
/*
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* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.sound.midi;
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/**
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* A <code>Transmitter</code> sends <code>{@link MidiEvent}</code> objects to one or more
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* <code>{@link Receiver Receivers}</code>. Common MIDI transmitters include sequencers
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* and MIDI input ports.
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*
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* @see Receiver
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*
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* @author Kara Kytle
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*/
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public interface Transmitter extends AutoCloseable {
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/**
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* Sets the receiver to which this transmitter will deliver MIDI messages.
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* If a receiver is currently set, it is replaced with this one.
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* @param receiver the desired receiver.
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*/
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public void setReceiver(Receiver receiver);
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/**
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* Obtains the current receiver to which this transmitter will deliver MIDI messages.
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* @return the current receiver. If no receiver is currently set,
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* returns <code>null</code>
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*/
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public Receiver getReceiver();
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/**
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* Indicates that the application has finished using the transmitter, and
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* that limited resources it requires may be released or made available.
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*
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* <p>If the creation of this <code>Transmitter</code> resulted in
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* implicitly opening the underlying device, the device is
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* implicitly closed by this method. This is true unless the device is
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* kept open by other <code>Receiver</code> or <code>Transmitter</code>
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* instances that opened the device implicitly, and unless the device
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* has been opened explicitly. If the device this
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* <code>Transmitter</code> is retrieved from is closed explicitly
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* by calling {@link MidiDevice#close MidiDevice.close}, the
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* <code>Transmitter</code> is closed, too. For a detailed
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* description of open/close behaviour see the class description
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* of {@link javax.sound.midi.MidiDevice MidiDevice}.
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*
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* @see javax.sound.midi.MidiSystem#getTransmitter
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*/
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public void close();
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}
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