CreateBarcode.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
    // create a new TXBarcodeControl
    TXTextControl.Barcode.TXBarcodeControl barcode =
      new TXTextControl.Barcode.TXBarcodeControl();
    barcode.CreateControl();

    // set the barcode type and size
    barcode.BarcodeType = TXTextControl.Barcode.BarcodeType.MicroPDF;
    barcode.UpperTextLength = 40;
    barcode.Width = 500;

    // set the text from the QueryString
    barcode.Text = Request.QueryString["text"];

    // save the barcode to an image MemoryStream
    MemoryStream stream = new MemoryStream();
    barcode.SaveImage(stream, System.Drawing.Imaging.ImageFormat.Png);

    // send back the image
    Response.Clear();
    Response.ContentType = "image/png";
    Response.BinaryWrite(stream.ToArray());
    Response.Flush();
    Response.Close();
    Response.End();
}