473,386 Members | 1,652 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,386 software developers and data experts.

CheckButton -- modify "check state"

How do for do a "select()" on a CheckButton in a menu (make with
add_checkbutton(....) )?
I can modify title, state, etc but not the "check state". :-(

Jul 18 '05 #1
2 3195
Askari wrote:
How do for do a "select()" on a CheckButton in a menu (make with
add_checkbutton(....) )?
I can modify title, state, etc but not the "check state". :-(

I have no clue what you're talking about: you have to at least
tell us what GUI toolkit you're using, and preferrably, show
a snippet of code.

Jul 18 '05 #2
Askari wrote:
How do for do a "select()" on a CheckButton in a menu (make with
add_checkbutton(....) )?
I can modify title, state, etc but not the "check state". :-(

Assuming you're using Tkinter, the way to do it is to use the variable option
when you create the menu, and them modify the variable. Here is an example code:

from Tkinter import *

root = Tk()

## Create the menu bar
menuBar = Menu(root)

## Create the menu
menu = Menu(menuBar)
menuBar.add_cascade(label='Menu', menu=menu)

## Create the variable for the check button
myCheckVar = BooleanVar()

## Functions to check/uncheck/print the check state
def check(*whatever): myCheckVar.set(1)
def uncheck(*whatever): myCheckVar.set(0)
def print_option(*whatever): print myCheckVar.get()

## Entries in menu
menu.add_checkbutton(label='Option', variable=myCheckVar)
menu.add_command(label='Check', command=check)
menu.add_command(label='Uncheck', command=uncheck)
menu.add_command(label='Print', command=print_option)


If you do not specify a command for the add_checkbutton, the default action is
to toggle the check state.

- Eric Brunel <eric dot brunel at pragmadev dot com> -
PragmaDev : Real Time Software Development Tools - http://www.pragmadev.com

Jul 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: Paul Tomlinson | last post by:
Question about a System.Threading.Timer object and the "state" object you pass to it... Timer stateTimer = new Timer( = new TimerCallback( OnTimer ), o, 1000, 1000); I have an array of timer...
by: C P | last post by:
I've seen references to using an out of process state server in cases where you need to maintain session state in a web server farm. I think SQL Server will be too slow to manage the state that I...
by: Hrishi R | last post by:
Hi: The following ASP.NET code segment throws an "Object reference not set to an instance of an object" exception. ------------------ Public Sub Page_Load(Source As Object, E As EventArgs) ...
by: jojoba | last post by:
hello all, does anyone know if, for a 2-state checkbox, you can use the "fill in" marker from the 3-state checkbox, instead of a checkmark i just like the look of the "fill-in" instead of the...
by: Ismail Fatih Yıldırım | last post by:
I modified the RSACSPSample from MSDN to try out a simple commutative encryption model using RSA encryption but when i run the progrem the first encryption command works but during the second...
by: louvino | last post by:
Hi, I have some links. When I click on one, a window opens but during the loading of this window, I would like the cursor is in state "wait" (using CSS : cursor : wait; ) Help me :-)
by: Mikewill | last post by:
I need to fix my Moodle database and someone has told me that they "used their server's CPanel and the mySQL feature to "check" then "fix" his moodle database". I dont have a cpanel and was hoping...
by: Jason Doucette | last post by:
Situation: I have a simple struct that, say, holds a color (R, G, and B). I created my own constructors to ease its creation. As a result, I lose the default constructor. I dislike this, but...
by: frostbb | last post by:
I have a C# WinForms treeview with 20 or so 'level 0' nodes. My users will normally have 2 of the 'level 0' branches open down to a '5th level' selected node. The users will make updates to...
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.