Tkinter canvas size determination

[Martin Franklin]

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