#!C:/Perl/bin/perl -w

use strict;
use CGI::Carp qw(fatalsToBrowser);
use GD;

#createanewimage
my $im=new GD::Image(100,100);

#allocatesomecolors
my $white=$im->colorAllocate(255,255,255);
my $black=$im->colorAllocate(0,0,0);
my $red=$im->colorAllocate(255,0,0);
my $blue=$im->colorAllocate(0,0,255);

#makethebackgroundtransparentandinterlaced
$im->transparent($white);
$im->interlaced('true');

#Putablackframearoundthepicture
$im->rectangle(0,0,99,99,$black);

#Drawablueoval
$im->arc(50,50,95,75,0,360,$blue);

#Andfillitwithred
$im->fill(50,50,$red);

#makesurewearewritingtoabinarystream
binmode STDOUT;

#ConverttheimagetoPNGandprintitonstandardoutput
print $im->png;