window.iconify()
   window.overrideredirect(1)

window.state('withdrawn') # спрятать
window.state('normal') #показать
window.state('iconic') #свернуть

from Tkinter import *
import threading
import Queue
from random import random

root = Tk()
root.geometry("%dx%d%+d%+d" % (200, 200, 5, 5))

Button(root, text = 'hide /threading',command = lambda *e:getcomandque.put('hidewindow')).pack()
Button(root, text = 'show /threading',command = lambda *e:getcomandque.put('showwindow')).pack()

Button(root, text = 'hide /root',command =  lambda *e: tpl.event_generate('<<hideme>>')).pack()
Button(root, text = 'show /root',command =  lambda *e: tpl.event_generate('<<showme>>')).pack()

tpl = Toplevel(root)
tpl.geometry("%dx%d%+d%+d" % (200, 200, 250, 5))
tpl.event_add ( '<<hideme>>','<F9>',) 
tpl.event_add ( '<<showme>>','<F12>') 
tpl.bind_all( '<<hideme>>', lambda *e: tpl.state('withdrawn'))
tpl.bind_all( '<<showme>>', lambda *e: tpl.state('normal'))

x = Button(tpl, text = 'rtololo',command = lambda *e:x.config(text=random()))
x.pack()
           
           
class MyThreadComand(threading.Thread):
    def run(self):
        while True:
            command  = getcomandque.get()
            if command  != None:
                print 'command',command
                if command == 'hidewindow':
                    tpl.state('withdrawn')
                if command == 'showwindow':
                    tpl.state('normal')
                print 'ok'

getcomandque = Queue.Queue()
MyThreadComand().start()
root.mainloop()