I couldn't reproduce your resizable() issue. I tried it with (0,0), (1,0), (0,1) and (1,1): all worked as documented (see Tk::Wm).

You don't want both __DATA__ and __END__ (see perldata - Special Literals).

You also have duplicated code at the top of your script and all button callbacks generate warnings because you haven't defined sub manipulate_link { ... } yet (you may be aware of that one).

Here's what I tested with:

#!/usr/bin/env perl

use strict;
use warnings;

use Tk;
require Tk::Pane;
require Tk::BrowseEntry;
require Tk::DialogBox;



my $MW = MainWindow->new(
    -title      => 'GUI Demo',
    -name       => 'Demo',
);

$MW->resizable(0,0); # not resizable in any direction

foreach my $txt (<DATA>) {
    chomp($txt);
    my $b = $MW->Button(
            -text    => $txt,
            -width   => 30,
            -height  => 3,
            -command => sub {manipulate_link($txt)},
        );
    $b->pack(qw/-side top -expand yes -pady 3/);
}

MainLoop;

__DATA__
Compile all
Compile selected blocks
Get selected blocks
Put selected blocks
Browse & Compare
Exit
[download]

Thanks for the replies. After looking into the manual, I changed the code as follows and finally got the desired function: could it be that resizable acts different in my perl or did I misunderstood what it is supposed to do? Thanks

#!/usr/local/bin/perl -w
use strict;
use Tk;
require Tk::Pane;
require Tk::BrowseEntry;
require Tk::DialogBox;
use warnings;
use strict;
use Tk;



my $MW = MainWindow->new(
    -title      => 'Habitat GUI',
    -name       => 'Demo',
);

#$MW->resizable(1,1); # not resizable in any direction
$MW->minsize(200,400);
$MW->maxsize(200,400);

foreach my $txt (<DATA>) {
    chomp($txt);
    my $b = $MW->Button(
            -text    => $txt,
            -width   => 30,
            -height  => 3,
            -command => sub {manipulate_link($txt)},
        );
    $b->pack(qw/-side top -expand yes -pady 3/);
}

MainLoop;

__DATA__
Compile all
Compile selected blocks
Get selected blocks
Put selected blocks
Browse & Compare
Exit
[download]

"... could it be that resizable acts different in my perl ..."

Seems unlikely; although, that question can best be answered when the versions of Perl and Tk that you're using are known.

resizable() has worked that way for all of the current millenium. Learning Perl/Tk documents the same behaviour for Perl 5.003 and Tk 400.202 — that book was published in 1999.

"... or did I misunderstood what it is supposed to do? ..."

Possibly; although, that question can best be answered when your understanding of what it's supposed to do is known.

Do you understand that the two arguments to resizable($x, $y) are boolean values? [$x indicating whether the width can be changed; $y indicating whether the height can be changed]

Do you also understand that resizable() refers to interactive resizing (e.g. dragging the window border with the mouse) and that it does not refer to programmatic resizing (e.g. in your example code, -width will affect the size of the window)?

Two final thoughts on this: see Tk::Wm - BUGS and how to work around them; and try calling resizable() as the last thing after all widgets are created and pack()ed (i.e. immediately before MainLoop is called).

-- Ken

I can't resize the window generated by this on Straberry Perl 5.16, Win 7 Pro, Tk v804.031. Remove __END__, see Special Literals.