There seem to be quite a few problems with this code...

Ronnie Betzen wrote:
#! /usr/bin/env python
import Tkinter
should be
  from Tkinter import *

class timer:
def __init__(self):

The next line needs to be after the line 'self.top = Tk()' so Tkinter is initialized when the variable is created.
# initialize global variables
self.ckbuttonstatus = IntVar()
# set up main window
self.top = Tk()
self.top.geometry('355x125')

appname is not defined...
self.top.title(appname)

etc...

I think you have bitten off too much here. Try starting with a very small, working program that has a little of what you want in it. Then add another little piece and get that working. Repeat until you get to where you want to be. Ask questions when you don't understand the next step.

Here is a very simple program that links a checkbox and a label through a variable. Maybe this is a step in the right direction for you:

from Tkinter import *

root = Tk()
var = IntVar()
Label(textvariable=var).pack()
c = Checkbutton(text="Click Me", variable=var)
c.pack()
root.mainloop()

Kent

self.top.resizable(width='no', height='no')
# set up menubar
self.menubar = menu(self.top)
self.top.config(menu = self.menubar)
# set up file menu
self.filemenu = Menu(self.menubar, tearoff = 0)
self.filemenu.add_cascade(label="File", menu=self.filemenu)
self.filemenu.add_checkbutton(label = "Click Me!", command = self.labelUpdate)
self.filemenu.add_command(label = "Quit", command=self.top.quit)
# set up main display area
self.frame = Frame(self.top)
self.frame.pack(fill=x)
self.displaylabel=Label(self.frame, text=" ", font="Times 36 bold", relief="sunken")
self.displaylabel.pack(side=BOTTOM, fill=X)
def labelUpdate(self):
self.status = self.ckbuttonstatus.get()
self.labeltext = "Chekbutton status is: " + self.status
self.displaylabel.config(text=labeltext)
self.top.update()
if __name__ == '__main__':
mainApp = timer()
mainloop()


On Friday 04 March 2005 08:39 pm, Ronnie Betzen wrote:

I've been trying to use IntVar() to update checkboxes using the Tkinter
toolkit.  To date I haven't been successful getting it to work.  Evidently
I'm missing some concept with regards to setting up my interface.  I've
successfully run scripts by other people using IntVar() so I know my
personal system is ok.

Here is some code that causes me problems with IntVar().  Can someone
enlighten this total newbie (python and programming both.) as to what I'm
missing here?

Thanks,

Ron
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