Draw to Tkinter Canvas


i'm new to the list.
i'm using matplotlib via the networkx graph package.
I wonder if there is a way i could draw a graph in a Tkinter canvas widget
of my application.
I.e. my Python application creates the Tkinter canvas and somehow passes it as an
argument to a matplotlib draw function.
I read the documentation section about Backends (http://matplotlib.sourceforge.net/faq/installing_faq.html#backends), and it suggests there is something like a Tkinter based backend (TkAgg), but i couldn't really figure out how to go ahead with this.
So my question: How do i use matplotlib to draw to a Tkinter Canvas provided by my application?
Any help would be much appreciated.

Thank you,
Lars Ruoff