Getting every child widget of a Tkinter window

Is it possible to get all of the children of a Tkinter widget, then get the children’s children etc.?

Basically I want all of the widgets within one entire window.

Edit :
I found a solution utilizing Bryan’s line :

def all_children (wid) :
    _list = wid.winfo_children()

    for item in _list :
        if item.winfo_children() :
            _list.extend(item.winfo_children())

    return _list