add link that open web browser on unix

[asafb]

hi
I wish to open a web browser in unix ( mozilla) from QT .
I saw that this question was asked here before and i used the answer in mu code .
BUT
it doesn't work for me. the process crash ( normalExit return 0 ) and no browser is open.

How can i figure out why it does not work ??
more details :
I am working on sun OS
which i am loged in using the rlogin command
the DISPLAY env is set correctlly in my ~/.cshrc file.

here is the code that i copy from this forum :
and what does Q_UNUSED(this) mean ?

bool result = false;
QUrl rUrl("http://www.cnn.com");
QString sUrl = rUrl;
QApplication::setOverrideCursor(Qt::BusyCursor);
 
Q_UNUSED(this);
// Try a range of browsers available on UNIX, until we (hopefully)    
// find one that works.  Start with the most popular first.    
QProcess process;
bool process_started = false;
 
process.setArguments(QStringList() << "mozilla" << sUrl );
process_started = process.start();
 
QApplication::restoreOverrideCursor(); 
 
return;

bool result = false;
QUrl rUrl("http://www.cnn.com");
QString sUrl = rUrl;
QApplication::setOverrideCursor(Qt::BusyCursor);

Q_UNUSED(this);
// Try a range of browsers available on UNIX, until we (hopefully)    
// find one that works.  Start with the most popular first.    
QProcess process;
bool process_started = false;

process.setArguments(QStringList() << "mozilla" << sUrl );
process_started = process.start();

QApplication::restoreOverrideCursor(); 

return;

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