sys
 PyQt4  QtGui,QtCore 

 (QtGui.):
    




     ():
        


        (SignalFrame,).()
        
        lcdQtGui.()
        sliderQtGui.(QtCore..,)
        vboxQtGui.()
        vbox.(lcd)
        vbox.(slider)
        .(vbox)
        
        .(slider, QtCore.(),lcd,QtCore.())
        
        button1  QtGui.(, )
        button1.(, )

        button2  QtGui.(, )
        button2.(, )

        .(button1, QtCore.(),
            .)

        .(button2, QtCore.(),
            .)
        
        .(,)
        .(,)
        
        .(, QtCore.(),
            QtCore.())
     (, event):
         event.()  QtCore..:
            .()
    
     (, event):
        .(QtCore.())
    
     ():
        sender.();
         sender.()
        

 __name__:
    appQtGui.(sys.)
    frameSignalFrame()
    frame.()
    sys.(app.())