Pmw and Tkinter

[Grzegorz Dostatni]

Hello...

I'm new to Python.  I'm working on a project that uses Tkinter and Pmw.
Here's my question:
Is it possible to set the minimum size of the window?  How?  I tried using
width and height attributes.  Those work fine as long as there is nothing on
the window. (I'm using a grid layout).  As soon as I put a button, the
window resizes itself...
What am I doing wrong?  I thought of using the 0'th row and column to put an
invisible object of given size (something 1x n pixels) to guarantee a
minimum size.

Thanks in advance

Grzegorz Dostatni