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devel / comp.lang.python / RE: Problem resizing a window and button placement

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o RE: Problem resizing a window and button placementSteve GS

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RE: Problem resizing a window and button placement

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From: Gronicus@SGA.Ninja (Steve GS)
Newsgroups: comp.lang.python
Subject: RE: Problem resizing a window and button placement
Date: Sat, 24 Feb 2024 22:58:00 -0500
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 by: Steve GS - Sun, 25 Feb 2024 03:58 UTC

So, how do I use the width value in my code?

SGA

-----Original Message-----
From: Python-list <python-list-bounces+gronicus=sga.ninja@python.org> On Behalf Of MRAB via Python-list
Sent: Saturday, February 24, 2024 10:36 PM
To: python-list@python.org
Subject: Re: Problem resizing a window and button placement

On 2024-02-25 02:51, Steve GS wrote:
> import tkinter as tk
>
> #global Ww Neither global helps
> def on_configure(*args):
> # print(args)
> #global Ww Neither global helps
> Ww = root.winfo_width()
> print("WwInside = <" + str(Ww) + ">")
>
> root = tk.Tk()
> root.bind('<Configure>', on_configure) print("WwOutside = <" + str(Ww)
> + ">")
> #NameError: name 'Ww' is not defined
> root.mainloop()
'Ww' won't exist until 'on_configure' assigns to it, and that won't happen until `mainloop` starts.

Also, 'global' works only within a function.

----8<----

import tkinter as tk

def on_configure(event):
print(f'{event.width=}, {event.height=}')

root = tk.Tk()
root.bind('<Configure>',on_configure)
root.mainloop()

----8<----

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