I want to draw a line on a picture using perl and Tk. Here is what I have. I get to see the line, but not the graphic. If I don't create the canvas (and pack the image instead of placing it) I can see the image. What am I missing? 
#! /usr/bin/perl -w
use strict;
use Tk;

my $mw = MainWindow->new(-title => "Try to put a line over an image" )
+;
$mw -> Photo ('imggif', -file => 'C:/foo.gif');

my $cf = $mw->Frame;
$cf->pack( -side => 'left', -fill => 'y', -expand => 1);

my $label = $cf->Label( -image => 'imggif'); 
# $label->pack( -side => 'left', -fill => 'both', -expand => 1);
$label->place( -anchor => 'nw', -relheight => 1,
    -relwidth => 1, -x => 0, -y => 0);

my $c = $cf->Scrolled("Canvas", -cursor => 'crosshair', # was $mw->
                          -scrollbars => 'se')
    ->pack( -side => 'left', -fill => 'both', -expand => 1);
my $line = $c->createLine(0,0,100,100, -width => 2, -fill => "red");

MainLoop;

[download]
Thanks! --traveler

In reply to Transparent draw with tk by traveler

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