embedding in Tkinter

[Curtis Jensen]

A while ago, I posted the message below.  Someone responded to me and
said that they would explain it.  However, I've lost the email, and
never got any other emails.  I would appreciate it if that person could
contact me again.  Or if anyone else has input on this, let me know. 
Thanks.
Sorry about the re-post.

> Is it possible to embed and arbitrary graphical program in a Tkinter Window.
> ie. run xclock in a Tkinter frame or canvas.

-- 
Curtis Jensen