G'day Hugo,

I would've implemented the layout you describe as follows. 

#!/usr/bin/env perl

use strict;
use warnings;

use Tk;

my $mw = MainWindow::->new();

my $fAB = $mw->Frame()->pack(-fill => 'both', -expand => 1);

my $fA = $fAB->Frame(-bg => '#ff0000'
)->pack(-side => 'left', -fill => 'both', -expand => 1);
my $fB = $fAB->Frame(-bg => '#ffff00'
)->pack(-side => 'left', -fill => 'y');
my $fC = $mw->Frame(-bg => '#0000ff'
)->pack(-fill => 'x');

$fA->Label(-text => 'A')->pack();
$fB->Label(-text => 'B')->pack();
$fC->Label(-text => 'C')->pack();

MainLoop;

[download]

I've colour-coded the A,B and C frames so that the effects of resizing are more obvious.

— Ken

In reply to Re: Controlling resize of Tk::Panedwindow by kcott
in thread Controlling resize of Tk::Panedwindow by hv

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.