# Tk and windows

**URL:** <https://rubytalk.org/t/tk-and-windows/6044>\
**Category:** ruby-talk\
**Created:** [19 May 2003 16:05 UTC](https://rubytalk.org/t/tk-and-windows/6044 "2003-05-19T16:05:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MENON\_Jean-Francois](https://avatars.discourse-cdn.com/v4/letter/m/cdc98d/32.png) [@MENON\_Jean-Francois](https://rubytalk.org/u/MENON_Jean-Francois)\
**Post date:** [19 May 2003 16:05 UTC](https://rubytalk.org/t/tk-and-windows/6044/1 "2003-05-19T16:05:35Z")

</div>

hello,  
I know I can make a TkToplevel window as a child of the background  
using:

TkToplevel.new(nil,‘use’=\>root\_id)

BUT: how can I obtain the window’s identifier of the background (screen)  
???

thx very much

jf

> **···**
>
> –
> 
> * * *
> 
> / do you play Go? \
> 
> > [http://jeanfrancois.menon.free.fr/rubygo](http://jeanfrancois.menon.free.fr/rubygo) |  
> > \ /
> 
> * * *
> 
> ```
> \ ^__^
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> (__)\ )\/\
> >>----w |
> >> >>
> 
> ```