Mwahahahaha

 #!/usr/bin/perl --
use strict;
use warnings;

$Tkx::TRACE = 64;
use Tkx;

Tkx::package_require("Tktable");

my $mw = Tkx::widget->new(".");
my %hash = 
    ( # data to display
     '1,0' => 'Vertical',
     '2,0' => 'Lng',
     '3,0' => 'Lateral',
     '0,1' => 'Expected shifts (A)',
     '0,2' => 'Shifts based on img alignment (B)',
     '0,3' => '|A-B|',
     );

my $t = $mw->new_table
    (
     -rows => 4,
     -cols => 4,
     -cache => 1,
     -variable => \%hash,
    );


$t->g_pack(-fill => 'both', -expand => 1);

$mw->new_button(
    -text => 'Populate',
    -command => sub {
        my( $r, $c ) = ( $t->cget('-rows') , $t->cget('-cols') );
        for my $rr ( 0 .. $r ){
            for my $cc ( 0 .. $c ){
                $t->set("$rr,$cc", "yo $rr, $cc oy" );
            }
        }
        return;
    },
)->g_pack;

$b=$mw->new_button
    (-text=>"Finish",
#~      -command=>sub {RecordData()},
     -command=>sub {
         RecordData();
#~          $mw->destroy; # err
#~          $mw->Tkx::destroy;
#~ http://docs.activestate.com/activeperl/5.16/lib/Tkx.html
#~ http://docs.activestate.com/activeperl/5.16/lib/Tcl/tkkit.html
#~ http://docs.activestate.com/activetcl/8.5/tktable/tkTable.html
#~ pathName get first ?last?
#~ Returns the value of the cells specified by the table indices first
+ and (optionally) last in a list.
        use Data::Dump;
        dd[ $t->configure ];
        dd[ Tkx::SplitList( $t->configure ) ];
        dd[ $t->cget('-rows') , $t->cget('-cols') ];
#~         dd[ $t->cget ];
        dd[ $t->get( qw/ topleft bottomright / ) ];
#~         my $cols = $t->cget('-cols');
        for my $row ( 0 .. $t->cget('-rows') ){
#~             dd[ $t->get( "$row.0, $row.$cols" ) ]; 
#~ bad table index "0.0, 0.4": must be active, anchor, end, origin, to
+pleft, bottomright, @x,y, or <row>,<col>
#~             dd [ map { $t->get( "$row,$_" ) }  $t->cget('-cols') ];
            dd [ map { $t->get( "$row,$_" ) }  0 .. $t->cget('-cols') 
+];
        }
         $mw->g_destroy;
     },
    );

$b->g_pack();

sub RecordData()
{
#    save the data input in the table to a file
};

Tkx::MainLoop();
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