Simplest data download code doesnt work :(

[aguayro]

Hi, i've been trying to understand the network system, but this simple code doesnt work.
please could anybody tell me why??
thanks

QUrl imgURL("http://www.convocatoria09.fecyt.es/img/logotipos/logo-ucc-jpg.jpg");
    QNetworkAccessManager manager;
    QNetworkRequest request(imgURL);
    manager.get(request);
 
    connect(&manager, SIGNAL( finished(QNetworkReply*)), SLOT(loadIMG(QNetworkReply*)));

QUrl imgURL("http://www.convocatoria09.fecyt.es/img/logotipos/logo-ucc-jpg.jpg");
    QNetworkAccessManager manager;
    QNetworkRequest request(imgURL);
    manager.get(request);
    
    connect(&manager, SIGNAL( finished(QNetworkReply*)), SLOT(loadIMG(QNetworkReply*)));

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and the loadIMG() function, just a debug

void loadCover( QNetworkReply* reply ) {
 
        qDebug() << QString("Ok!");
 
    }

void loadCover( QNetworkReply* reply ) {

        qDebug() << QString("Ok!");

    }

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