System.Drawing.Printing.PrintDocument doctoprint = new System.Drawing.Printing.PrintDocument();

                    for (int i = 0; i < doctoprint.PrinterSettings.PaperSizes.Count; i++)
                    {
                        //MessageBox.Show(doctoprint.PrinterSettings.PaperSizes[i].PaperName);
                        int rawKind;
                        if (doctoprint.PrinterSettings.PaperSizes[i].PaperName == "ModuloContinuoMIO")
                        {
                            MessageBox.Show(doctoprint.PrinterSettings.PaperSizes[i].PaperName);
                            rawKind = System.Convert.ToInt32(doctoprint.PrinterSettings.PaperSizes[i].GetType().GetField("kind", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).GetValue(doctoprint.PrinterSettings.PaperSizes[i]));
                            stampaDTTsp.PrintOptions.PaperSize = (CrystalDecisions.Shared.PaperSize)rawKind;
                            break;
                        }
                    }