Tkinter canvas size determination

[Dean Allen Provins]

Martin:

Martin Franklin wrote:
> Dean Allen Provins wrote:
> 
>> Cameron:
>>
>> Cameron Laird wrote:
>>
>>> In article <43FC9532.2050800 at rpcl.com>,
>>> Dean Allen Provins  <dprovins at rpcl.com> wrote:
>>>
>>>> I need to determine the size of a canvas while the process is running.
>>>> Does anyone know of a technique that will let me do that?
>>>
>>>             .
>>>             .
>>>             .
>>> Does
>>>   >>> import Tkinter
>>>   >>> c = Tkinter.Canvas()
>>>   >>> c.create_oval(13, 51, 80, 130)
>>>   1
>>>   >>> c.pack()
>>>   >>> print c.cget("width")
>>>   284
>>> help?
>>>
>>> There are actually several different notions of the size of a
>>> canvas.  The example abovve should be a good starting point,
>>> though. 
>>> There's also a mailing list specifically for Tkinter <URL:
>>> http://tkinter.unpythonic.net/wiki/mailing_20lists  >; that
>>> might interest you.
>>
>>
>> I tried the "cget" function, and it returned the width that I had used
>> when creating the canvas - even though the canvas was wider than that
>> value at display time (and also after manually resizing the window).
>>
>> To your knowledge, is there a method to determine the current dimensions?
>>
>> Thanks,
>>
>> Dean
> 
> 
> 
> Dean,
> 
> Look at the winfo_* methods of Tkinter widgets, I think the one you want
> is called winfo_reqheight / winfo_reqwidth or something very similar
> pydoc Tkinter.Canvas will sort that out
> 
> Martin

Thanks.  That is exactly what I needed.  I tried it, and it returned the
desired values.

Regards,

Dean