private void button1_Click(object sender, EventArgs e)
        {
            BarcodeReaderLib.BarcodeDecoder barcodeDecoder = new BarcodeReaderLib.BarcodeDecoder();
            barcodeDecoder.LinearFindBarcodes = 7;
            barcodeDecoder.DecodeFile(textBox1.Text);

            //show results
            BarcodeReaderLib.BarcodeList BarcodeList = barcodeDecoder.Barcodes;
            for (int i = 0; i < BarcodeList.length; i++)
            {
                BarcodeReaderLib.Barcode barcode = BarcodeList.item(i);
                string sResult = string.Format("{0}\n{1}\n({2},{3}),({4},{5}),({6},{7}),({8},{9})\nPage: {10}", barcode.BarcodeType.ToString(), barcode.Text, barcode.x1, barcode.y1, barcode.x2, barcode.y2, barcode.x3, barcode.y3, barcode.x4, barcode.y4, barcode.PageNum);
                MessageBox.Show(sResult);
            }
        }