public static function run($dataDir = null)
{
# Create instance of Diagram
$diagram = new Diagram($dataDir . "drawing.vsd");
$diagram->getDocumentSettings()->setProtectBkgnds(1);
$diagram->getDocumentSettings()->setProtectMasters(1);
$diagram->getDocumentSettings()->setProtectShapes(1);
$diagram->getDocumentSettings()->setProtectStyles(1);
# Save diagram
$saveFileFormat = new SaveFileFormat();
$diagram->save($dataDir . "ProtectUnprotectDiagram.vdx", $saveFileFormat->VDX);
print "Applied protection on diagram successfully!" . PHP_EOL;
}
