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## com.trolltech.qt.gui
Class QSound

    java.lang.Object
      com.trolltech.qt.internal.QSignalEmitterInternal
          com.trolltech.qt.QSignalEmitter
              com.trolltech.qt.QtJambiObject
                  com.trolltech.qt.core.QObject
                      com.trolltech.qt.gui.QSound

All Implemented Interfaces:
  QtJambiInterface

    public class QSound

extends QObject

The QSound class provides access to the platform audio facilities. Qt provides the most commonly required audio operation in GUI applications: asynchronously playing a sound file. This is most easily accomplished using the static `play()` function:

            QSound.play("mysounds/bells.wav");

Alternatively, create a QSound object from the sound file first and then call the `play()` slot:

            QSound bells = new QSound("mysounds/bells.wav");
            bells.play();

Once created a QSound object can be queried for its `fileName()` and total number of `loops()` (i.e. the number of times the sound will play). The number of repetitions can be altered using the `setLoops()` function. While playing the sound, the `loopsRemaining()` function returns the remaining number of repetitions. Use the `isFinished()` function to determine whether the sound has finished playing.

Sounds played using a QSound object may use more memory than the static `play()` function, but it may also play more immediately (depending on the underlying platform audio facilities). Use the static `isAvailable()` function to determine whether sound facilities exist on the platform. Which facilities that are actually used varies:

Platform | Audio Facility
--- | ---
Microsoft Windows | The underlying multimedia system is used; only WAVE format sound files are supported.
X11 | The Network Audio System is used if available, otherwise all operations work silently. NAS supports WAVE and AU files.
Mac OS X | NSSound is used. All formats that NSSound supports, including QuickTime formats, are supported by Qt for Mac OS X.
Qt for Embedded Linux | A built-in mixing sound server is used, accessing `/dev/dsp` directly. Only the WAVE format is supported.

Note that QSound does not support resources. This might be fixed in a future Qt version.

Nested Class Summary

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
`QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9`

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal`

Field Summary

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`currentSender`

Constructor Summary
`QSound(java.lang.String filename)` Constructs a QSound object from the file specified by the given `filename` and with the given `parent`.
`QSound(java.lang.String filename, QObject parent)` Constructs a QSound object from the file specified by the given `filename` and with the given `parent`.

Method Summary
`java.lang.String` | `fileName()` Returns the filename associated with this QSound object.
`static boolean` | `isAvailable()` Returns true if sound facilities exist on the platform; otherwise returns false.
`boolean` | `isFinished()` Returns true if the sound has finished playing; otherwise returns false.
`int` | `loops()` Returns the number of times the sound will play.
`int` | `loopsRemaining()` Returns the remaining number of times the sound will loop (this value decreases each time the sound is played).
`void` | `play()` Starts playing the sound specified by this QSound object.
`static void` | `play(java.lang.String filename)` Plays the sound stored in the file specified by the given `filename`.
`void` | `setLoops(int arg__1)` Sets the sound to repeat the given `number` of times when it is played.
`void` | `stop()` Stops the sound playing.

Methods inherited from class com.trolltech.qt.core.QObject
`childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty`

Methods inherited from class com.trolltech.qt.QtJambiObject
`dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr`

Methods inherited from class com.trolltech.qt.QSignalEmitter
`blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread`

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`__qt_signalInitialization`

Methods inherited from class java.lang.Object
`clone, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface com.trolltech.qt.QtJambiInterface
`disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership`

Constructor Detail

### QSound

    public QSound(java.lang.String filename)

  Constructs a QSound object from the file specified by the given `filename` and with the given `parent`.

  This may use more memory than the static `play()` function, but it may also play more immediately (depending on the underlying platform audio facilities).

See also:
  `play()`.

### QSound

    public QSound(java.lang.String filename,
                  QObject parent)

  Constructs a QSound object from the file specified by the given `filename` and with the given `parent`.

  This may use more memory than the static `play()` function, but it may also play more immediately (depending on the underlying platform audio facilities).

See also:
  `play()`.

Method Detail

### fileName

    public final java.lang.String fileName()

  Returns the filename associated with this QSound object.

See also:
  QSound().

### isFinished

    public final boolean isFinished()

  Returns true if the sound has finished playing; otherwise returns false.

  Warning: On Windows this function always returns true for unlooped sounds.

### loops

    public final int loops()

  Returns the number of times the sound will play.

See also:
  `loopsRemaining()`, and `setLoops()`.

### loopsRemaining

    public final int loopsRemaining()

  Returns the remaining number of times the sound will loop (this value decreases each time the sound is played).

See also:
  `loops()`, and `isFinished()`.

### play

    public final void play()

  Starts playing the sound specified by this QSound object.

  The function returns immediately. Depending on the platform audio facilities, other sounds may stop or be mixed with the new sound. The sound can be played again at any time, possibly mixing or replacing previous plays of the sound.

See also:
  `fileName()`.

### setLoops

    public final void setLoops(int arg__1)

  Sets the sound to repeat the given `number` of times when it is played.

  Note that passing the value -1 will cause the sound to loop indefinitely.

See also:
  `loops()`.

### stop

    public final void stop()

  Stops the sound playing.

  Note that on Windows the current loop will finish if a sound is played in a loop.

See also:
  `play()`.

### isAvailable

    public static boolean isAvailable()

  Returns true if sound facilities exist on the platform; otherwise returns false.

  If no sound is available, all QSound operations work silently and quickly. An application may choose either to notify the user if sound is crucial to the application or to operate silently without bothering the user.

  Note: On Windows this always returns true because some sound card drivers do not implement a way to find out whether it is available or not.

### play

    public static void play(java.lang.String filename)

  Plays the sound stored in the file specified by the given `filename`.

See also:
  `stop()`, `loopsRemaining()`, and `isFinished()`.

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