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This is the verbatim text of the audiodevice.h include file. It is provided only for illustration; the copyright remains with Trolltech.
/********************************************************************** ** Copyright (C) 2000-2005 Trolltech AS. All rights reserved. ** ** This file is part of the Qtopia Environment. ** ** This program is free software; you can redistribute it and/or modify it ** under the terms of the GNU General Public License as published by the ** Free Software Foundation; either version 2 of the License, or (at your ** option) any later version. ** ** A copy of the GNU GPL license version 2 is included in this package as ** LICENSE.GPL. ** ** This program is distributed in the hope that it will be useful, but ** WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ** See the GNU General Public License for more details. ** ** In addition, as a special exception Trolltech gives permission to link ** the code of this program with Qtopia applications copyrighted, developed ** and distributed by Trolltech under the terms of the Qtopia Personal Use ** License Agreement. You must comply with the GNU General Public License ** in all respects for all of the code used other than the applications ** licensed under the Qtopia Personal Use License Agreement. If you modify ** this file, you may extend this exception to your version of the file, ** but you are not obligated to do so. If you do not wish to do so, delete ** this exception statement from your version. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #ifndef AUDIODEVICE_H #define AUDIODEVICE_H #include <qobject.h> class AudioDevicePrivate; class AudioDevice : public QObject { Q_OBJECT public: AudioDevice(QObject *parent=0, const char *name=0); ~AudioDevice(); void open(unsigned int freq = 44000, unsigned int channels = 2, unsigned int bytesPerSample = 2, bool needCompletedSignal = true); void close(); unsigned int canWrite() const; bool write( char *buffer, unsigned int length ); int bytesWritten(); unsigned int channels() const; unsigned int frequency() const; unsigned int bytesPerSample() const; unsigned int bufferSize() const; // Each volume level is from 0 to 0xFFFF static void volume(int &left, int &right); static void setVolume(int left, int right); static bool muted(); static void setMuted(bool); static void increaseVolume() { int l,r; volume(l,r); setVolume(l+1968,r+1968); } static void decreaseVolume() { int l,r; volume(l,r); setVolume(l-1966,r-1966); } public slots: void volumeChanged( bool muted ); signals: void completedIO(); void deviceReady(); void deviceOpenError(); private: AudioDevicePrivate *d; }; #endif // AUDIODEVICE_H
Copyright © 2005 Trolltech | Trademarks | Qtopia version 2.2.0
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