WPF - Printig problem with a picture

Hi!

i have a picture that i will print..

BildOrginal = @"d:\MyPicture.jpg";

So far so good..

Now i have the Printer Dialog with a little problem...

Here is the Code:

        private void button1_Click(object sender, RoutedEventArgs e)
        {

            // Standardprinter
            LocalPrintServer StdDrucker = new LocalPrintServer();
            string StdDruckerName = StdDrucker.DefaultPrintQueue.FullName.ToString();

            // Select Printer
            PrintDialog pD = new PrintDialog();
            pD.PageRangeSelection = PageRangeSelection.AllPages;
            pD.UserPageRangeEnabled = true;

            Nullable<Boolean> print = pD.ShowDialog();
            if (print == true)
            {
                StdDrucker.DefaultPrintQueue = pD.PrintQueue;
                PrintDocument pd = new PrintDocument();
                pd.PrintPage += PrintPage;
            //    pd.PrinterSettings.PrinterName.
                pd.Print();
           }
       }

        private void PrintPage(object o, PrintPageEventArgs e)
        {
            System.Drawing.Image img = System.Drawing.Image.FromFile(BildOrginal);
            Point loc = new Point(100, 100);
            e.Graphics.DrawImage(img, 10, 10, 900, 700);
        }

How can I set the printer that i become from the printer dialog?

If I let the code run then the print goes to the Standard printer...

Best Regards

Bernd