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| Current File : //lib64/python2.7/Demo/tkinter/matt/subclass-existing-widgets.py |
from Tkinter import *
# This is a program that makes a simple two button application
class New_Button(Button):
def callback(self):
print self.counter
self.counter = self.counter + 1
def createWidgets(top):
f = Frame(top)
f.pack()
f.QUIT = Button(f, text='QUIT', foreground='red', command=top.quit)
f.QUIT.pack(side=LEFT, fill=BOTH)
# a hello button
f.hi_there = New_Button(f, text='Hello')
# we do this on a different line because we need to reference f.hi_there
f.hi_there.config(command=f.hi_there.callback)
f.hi_there.pack(side=LEFT)
f.hi_there.counter = 43
root = Tk()
createWidgets(root)
root.mainloop()