Update Label when Scale value changes

[codecraig]

Hi,
I am using Tkinter and I have a Label and a Scale. I want to update
my label everytime the Scale value changes. What is the best way of
doing this? Do i have to bind for every event type? Or is there some
better way? If I do have to bind each type of event to the scale, what
types occur for a Scale?

Thanks.

 

[=?ISO-8859-1?Q?J=F8rgen_Cederberg?=]

Hi,
I am using Tkinter and I have a Label and a Scale. I want to update
my label everytime the Scale value changes. What is the best way of
doing this? Do i have to bind for every event type? Or is there some
better way? If I do have to bind each type of event to the scale, what
types occur for a Scale?

Thanks.

Hi

you could use a variable. Below is simple program that connects the value of the scale to
the label.


from Tkinter import *

root = Tk()

var = IntVar()
Label(root, textvariable=var).pack()
Scale(root, from_=-2.0, to=10.0, variable=var).pack()

root.mainloop()

Hope this helps
Jorgen Cederberg

 

[codecraig]

Yea that is what i needed. Can you recommend a good Tkinter site (or
book, but preferably site) about learning Tkinter.

I've tried:
http://www.python.org/moin/TkInter
http://www.pythonware.com/library/tkinter/introduction/

But I am looking for more about events, etc.

Thanks

 

[=?ISO-8859-1?Q?J=F8rgen_Cederberg?=]

Yea that is what i needed. Can you recommend a good Tkinter site (or
book, but preferably site) about learning Tkinter.

I've tried:
http://www.python.org/moin/TkInter
http://www.pythonware.com/library/tkinter/introduction/

But I am looking for more about events, etc.

Thanks

Hi

the above links are good. Also check out
http://infohost.nmt.edu/tcc/help/pubs/tkinter/
which has a lot of information on events.

/Jorgen Cederberg

 

[Kent Johnson]

Yea that is what i needed. Can you recommend a good Tkinter site (or
book, but preferably site) about learning Tkinter.

I've tried:
http://www.python.org/moin/TkInter
http://www.pythonware.com/library/tkinter/introduction/

I also like
http://infohost.nmt.edu/tcc/help/pubs/tkinter/

Kent