[Tutor] Problem with IntVar() - Oops! Here's the code.

[Ronnie Betzen]

#! /usr/bin/env python
import Tkinter

class timer:
  def __init__(self):
      
      # initialize global variables
      self.ckbuttonstatus = IntVar()
      
      # set up main window
      self.top = Tk()
      self.top.geometry('355x125')
      self.top.title(appname)
      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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