On 2/24/2024 3:20 AM, Steve GS via Python-list wrote:
Yes, I ran that elegantly
simple code. The print
statement reports the X, Y,
Height and Width values.
However, I do not see how to
capture the width value.
I experimented with the code
Vwidth = rootV.winfo_width()
and it also reports the width
as I resize the window.
However, I cannot seem to use
the variable Vwidth outside
the sub routine. It is acting
as if Vwidth is not global but
I added that. It is reported
that Vwidth is not defined
when I try to use it in my
code.
Well, yes, in Python a variable created inside a function or method is
local to that function unless you declare it global. That characteristic
is called its "scope". But if you think you need it to be a global
variable you should rethink your design. For one thing, before the next
time you use your global variable the window size may have changed again.
Instead, it would be better to have the function that responds to the
resize event perform the action that you want, or call another function
that does, passing the new width to it.
Note that in most programming languages, variables have a scope. The
rules about those scopes vary between languages.
So close......
SGA
-----Original Message-----
From: Barry
<ba...@barrys-emacs.org>
Sent: Saturday, February 24,
2024 3:04 AM
To: Steve GS
<Gronicus@sga.ninja>
Cc: MRAB
<pyt...@mrabarnett.plus.com>;
python-list@python.org
Subject: Re: Problem resizing
a window and button placement
On 24 Feb 2024, at 04:36,
Steve GS via Python-list
<python-list@python.org>
wrote:
How do I extract the values
from args?
You can look up the args in
documentation.
You can run the example code
MRAB provided and see what is
printed to learn what is in
the args.
Barry
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