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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of Qt for Python.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of The Qt Company Ltd nor the names of its
+** contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+class Window2 (QWidget):
+//![0]
+ @Slot(QAudio.State)
+ def stateChanged(self, newState):
+ if newState == QAudio.StopState:
+ if self.input.error() != QAudio.NoError:
+ # Error handling
+//![0]
+
+class Window (QWidget):
+ def __init__(self):
+ QWidget.__init__(self)
+ self.output = QAudioOutput()
+ self.output.stateChanged[QAudio.State].connect(self.stateChanged)
+
+ def setupFormat(self):
+//![1]
+ format = QAudioFormat()
+ format.setFrequency(44100)
+//![1]
+ format.setChannels(2)
+ format.setSampleSize(16)
+ format.setCodec("audio/pcm")
+ format.setByteOrder(QAudioFormat.LittleEndian)
+//![2]
+ format.setSampleType(QAudioFormat.SignedInt)
+
+ info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
+
+ if not info.isFormatSupported(format):
+ format = info.nearestFormat(format)
+//![2]
+
+//![3]
+ @Slot(QAudio.State)
+ def stateChanged(self, newState):
+ if newState == QAudio.StopState:
+ if self.output.error() != QAudio.NoError:
+ # Perform error handling
+ else:
+ # Normal stop
+//![3]
+
+ # Handle
+ elif newState == QAudio.ActiveState:
+ # Handle active state...
+
+app = QApplication(sys.argv)
+
+window = Window()
+window.show()
+sys.exit(app.exec_())
+
+