Tkinter checkbox value

[scratchmyhead]

How do I get the current value of a checkbutton. So if someone checked a box, then how to get the value. Is the value either 1 or 0?

Example:

var5 = IntVar()
    checksmoke = Checkbutton(checkin, text="Smoker", bg="yellow", command=selectsmoke, variable=var5)
    checksmoke.place(x=105, y=420)