Toolbar and PyQT

[lionelgreenstreet]

Hi,
i'm new with python, so i need an help about this problem.
I've implemented a toolbar in a QDialog box:

from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar

......

self.toolbar = NavigationToolbar(self.canvas, self)

I've found this code on internet. I have two question:
1. How i can set that toolbar (if possible) with QtDesigner?
2. If i want to modify that toolbar, for example adding a function during axis settings, is it possible?
Thanks