Downloading a page with QNetworkAccessManager

[TempleClause]

Hello,

I'm trying to download a webpage using the QNetworkAccessManager but I always get strange build errors..

Here is my code:

#include <QtCore/QCoreApplication>
#include "downloadpage.h"

int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);

DownloadPage downloadPage;
downloadPage.startDownload();

return a.exec();
}



#ifndef DOWNLOADPAGE_H
#define DOWNLOADPAGE_H

#include <Qt/QtNetwork>
#include <QDebug>

class DownloadPage:QObject
{
Q_OBJECT

public:
DownloadPage();
void startDownload();

private slots:
void downloadComplete(QNetworkReply *reply);

private:
QNetworkAccessManager *manager;
};

#endif // DOWNLOADPAGE_H



#include "downloadpage.h"

DownloadPage::DownloadPage()
{
qDebug()<<"Download Page constructor called";
manager = new QNetworkAccessManager(this);
connect(manager,SIGNAL(finished(QNetworkReply*)),t his,SLOT(downloadComplete(QNetworkReply*)));
}

void DownloadPage::startDownload(){
qDebug()<<"Downloading Page...";
manager->get(QNetworkRequest(QUrl("http://www.google.ch")));
qDebug()<<"Page call end but not finished yet";
}

void DownloadPage::downloadComplete(QNetworkReply *reply){
qDebug()<<"Page call finished";
}


and my build errors are:

debug/downloadpage.o: In function `DownloadPage':
D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:6: undefined reference to `_imp___ZN21QNetworkAccessManagerC1EP7QObject'
D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:6: undefined reference to `_imp___ZN21QNetworkAccessManagerC1EP7QObject'
debug/downloadpage.o:D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:12: undefined reference to `_imp___ZN15QNetworkRequestC1ERK4QUrl'
debug/downloadpage.o:D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:12: undefined reference to `_imp___ZN21QNetworkAccessManager3getERK15QNetwork Request'
debug/downloadpage.o:D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:12: undefined reference to `_imp___ZN15QNetworkRequestD1Ev'
debug/downloadpage.o:D:\Desktop\ComeOn-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug/../ComeOn/downloadpage.cpp:12: undefined reference to `_imp___ZN15QNetworkRequestD1Ev'
collect2: ld returned 1 exit status
mingw32-make.exe[1]: *** [debug\ComeOn.exe] Error 1
mingw32-make.exe: *** [debug] Error 2
21:36:03: The process "D:\QtSDK\mingw\bin\mingw32-make.exe" exited with code 2.
Error while building project ComeOn (target: Desktop)
When executing build step 'Make'

Does anybody have an idea?

Thanks!

[Rhayader]

Just add
QT += network in your .pro file

[TempleClause]

many many thanks! :)