Can't get webpage to open using 'QHttp'

[rishiraj]

Hi,
I tried to implement the 'QHttp' example given in the Qt documents.
What I want is that when I click "openTrolltech",the Trolltech webpage should open up.

The code I am using is a slightly cropped version of the one given in the docs--

void ImageViewer::openurl() 
    {
        QHttp *http=new QHttp(this);
        http->setHost("www.trolltech.com");                
        http->get(QUrl::toPercentEncoding("/index.html")); 
 
    }

void ImageViewer::openurl() 
    {
        QHttp *http=new QHttp(this);
        http->setHost("www.trolltech.com");                
        http->get(QUrl::toPercentEncoding("/index.html")); 
          
    }

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It's not showing any error but the page/Browser isn't opening up.
I added QT+=network in the .pro file and added the proper header files.
What's wrong with the code ?Please advice.
Thanks in advance.