API in C++ with Qt4 GUI

[pytro]

Hello again ,
I want acess updated data from xpto Class/Thread.

int main(int argc, char *argv[])
{	
QApplication a(argc, argv);
QtInterface w;	
Test *xpto;
....
QTimer *timer = new QTimer(&a);
a.connect(timer, SIGNAL(timeout()), &a, SLOT(w.dostuff(xpto)));	
timer->start(5000);
....
}

int main(int argc, char *argv[])
{	
QApplication a(argc, argv);
QtInterface w;	
Test *xpto;
....
QTimer *timer = new QTimer(&a);
a.connect(timer, SIGNAL(timeout()), &a, SLOT(w.dostuff(xpto)));	
timer->start(5000);
....
}

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Is this supose to call the SLOT in Qt.cpp every 5 sec., passing updated xpto?
Because i tested with timers in Qt.cpp and is working perfectly.
In Main.cpp isn't working.

Do i have to use a timer in Main.cpp and use another timer in Qt.cpp to update QTableWidgetItem?
How should i config both timers? (if needed)

Thanks.

[pytro]

Found the reason:

To start an event loop from a non-GUI thread, use QThread::exec()..

I think...