sub graph_vector {
    require GD;
    require GD::Graph::bars;
    my $png = "c:\\temp\\test.png";
    my $GD = GD::Graph::bars->new( 300,300 )
        or die $GD->error;
    my $data = GD::Graph::Data->new( [ [1..26],[1..26] ] ) 
        or die $GD->error;
    my $gd = $GD->plot( $data )
        or die $GD->error;
    open my $img, '>', $png or die "Couldn't open $png: $!";
    binmode $img;
    print $img $gd->png or die "Error printing png: $!:", $GD->error;
    close $img;
    undef $gd;
    die "Got error!\n";
  return 0;
}

eval{ graph_vector() };
print $@ if $@;