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Revision as of 04:17, 11 October 2012 by hamishwillee (Talk | contribs)

How to use QSound in Qt

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Article Metadata
Tested with
Devices(s): S60 Emulator
Compatibility
Platform(s): S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition
Symbian
S60 5th Edition
S60 3rd Edition FP2
S60 3rd Edition FP1
Article
Keywords: QSound
Created: mind_freak (17 Mar 2009)
Last edited: hamishwillee (11 Oct 2012)

Contents

Overview

This article shows how to use QSound to asynchronously play sound files. QSound provides the simplest mechanism in Qt to access and play audio.

Preconditions

  • Download and install the Qt SDK.

Function/Property

  • Plays the sound stored in the file specified by the given filename
QSound *sound=new QSound("C://Documents and Settings//Viral//My Documents//sound//Windows XP Startup.wav");
   sound->setLoops(3);


Signal/Slots

  • Starts playing the sound specified by this QSound object.
QObject::connect(play,SIGNAL(clicked()),sound,SLOT(play()));
  • Stops the sound playing.
QObject::connect(stop,SIGNAL(clicked()),sound,SLOT(stop()));

Source File

#include <QtGui/QApplication>
#include "widget.h"
#include<QSound>
#include<QPushButton>
#include<QHBoxLayout>
#include<QWidget>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWidget *win=new QWidget();
QHBoxLayout *lay=new QHBoxLayout();
QSound *sound=new QSound("C://Documents and Settings//Viral//My Documents//sound//Windows XP Startup.wav");//getting the audio file
sound->setLoops(3);//three times that specific audio file is played
QPushButton *play=new QPushButton("PLAY");//press button to play sound
QPushButton *stop=new QPushButton("STOP");//press to stop playing
QObject::connect(play,SIGNAL(clicked()),sound,SLOT(play()));
QObject::connect(stop,SIGNAL(clicked()),sound,SLOT(stop()));
lay->addWidget(play);
lay->addWidget(stop);
win->setLayout(lay);
win->showMaximized();
win->setStyleSheet("* { background-color:rgb(199,147,88); padding: 7px ; color:rgb(255,255,255)}");
return a.exec();
}

See also

Playing audio with QSound in Qt

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