private void ustawieniaStronyToolStripMenuItem_Click(object sender, EventArgs e)
        {
            pageSetupDialog1.PageSettings = new System.Drawing.Printing.PageSettings();
            pageSetupDialog1.PrinterSettings = new System.Drawing.Printing.PrinterSettings();
            pageSetupDialog1.ShowNetwork = false;

            DialogResult result = pageSetupDialog1.ShowDialog();

            if (result == DialogResult.OK)
            {
                object[] results = new object[]
                {
                    pageSetupDialog1.PageSettings.Margins,
                    pageSetupDialog1.PageSettings.PaperSize,
                    pageSetupDialog1.PageSettings.Landscape,
                    pageSetupDialog1.PrinterSettings.PrinterName,
                    pageSetupDialog1.PrinterSettings.PrintRange
                };
                ListBox1.Items.AddRange(results);
            }
        }