QT4_python: MenuBar

[tsic]

Hello,
when I test many examples and tutorials of Qt4/python with a MenuBar it works. But in my application I coudln't do it.

1)So what is the general code for the call of an other interface.ui in the MainWindow:
for example:
QtCore.QObject.connect(self.ui.F_Connexion,QtCore. SIGNAL("triggered()"),self.conn)
how can I call the interface of connection in def conn(self)


2) What is particular in About:
QtGui.QMessageBox.about(self, "About my_application",.....)
->I didn't understand the syntax not even works


Thank you for help

[tsic]

Hello,
It's so strange. You used to answer to my questions in maximum 1hour. Why no body wants to help me??