    using System;
    using System.Collections.Generic;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;

    // Use EVO PDF Namespace
    using EvoPdfClient;

    namespace EvoHtmlToPdfDemo.HTML_to_Image
    {
        public partial class HTML_to_Image : System.Web.UI.Page
        {
            protected void convertToImageButton_Click(object sender, EventArgs e)
            {
                // Get the server IP and port
                String serverIP = textBoxServerIP.Text;
                uint serverPort = uint.Parse(textBoxServerPort.Text);

                // Create a HTML to Image converter object with default settings
                HtmlToImageConverter htmlToImageConverter = new HtmlToImageConverter(serverIP, serverPort);

                // Set optional service password
                if (textBoxServicePassword.Text.Length > 0)
                    htmlToImageConverter.ServicePassword = textBoxServicePassword.Text;

                // Set license key received after purchase to use the converter in licensed mode
                // Leave it not set to use the converter in demo mode
                htmlToImageConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

                // Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width
                htmlToImageConverter.HtmlViewerWidth = int.Parse(htmlViewerWidthTextBox.Text);

                // Set HTML viewer height in pixels to convert the top part of a HTML page
                // Leave it not set to convert the entire HTML
                if (htmlViewerHeightTextBox.Text.Length > 0)
                    htmlToImageConverter.HtmlViewerHeight = int.Parse(htmlViewerHeightTextBox.Text);

                // Set if the created image has a transparent background
                htmlToImageConverter.TransparentBackground = SelectedImageFormat() == ImageType.Png ? transparentBackgroundCheckBox.Checked : false;

                // Set the maximum time in seconds to wait for HTML page to be loaded
                // Leave it not set for a default 60 seconds maximum wait time
                htmlToImageConverter.NavigationTimeout = int.Parse(navigationTimeoutTextBox.Text);

                // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
                // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
                if (conversionDelayTextBox.Text.Length > 0)
                    htmlToImageConverter.ConversionDelay = int.Parse(conversionDelayTextBox.Text);

                byte[][] imageTiles = null;

                if (convertUrlRadioButton.Checked)
                {
                    string url = urlTextBox.Text;

                    // Convert the HTML page given by an URL to a set of Image objects
                    imageTiles = htmlToImageConverter.ConvertUrlToImageTiles(url, SelectedImageFormat());
                }
                else
                {
                    string htmlString = htmlStringTextBox.Text;
                    string baseUrl = baseUrlTextBox.Text;

                    // Convert a HTML string with a base URL to a set of Image objects
                    imageTiles = htmlToImageConverter.ConvertHtmlToImageTiles(htmlString, baseUrl, SelectedImageFormat());
                }

                // Save the first image tile to a memory buffer

                byte[] outImageBuffer = imageTiles[0];

                // Send the image as response to browser

                string imageFormatName = imageFormatComboBox.SelectedValue.ToLower();

                // Set response content type
                Response.AddHeader("Content-Type", "image/" + (imageFormatName == "jpg" ? "jpeg" : imageFormatName));

                // Instruct the browser to open the image file as an attachment or inline
                Response.AddHeader("Content-Disposition", String.Format("attachment; filename={0}; size={1}", "HTML_to_Image." + imageFormatName, outImageBuffer.Length.ToString()));

                // Write the image buffer to HTTP response
                Response.BinaryWrite(outImageBuffer);

                // End the HTTP response and stop the current page processing
                Response.End();
            }

            private ImageType SelectedImageFormat()
            {
                switch (imageFormatComboBox.SelectedValue)
                {
                    case "Png":
                        return ImageType.Png;
                    case "Jpg":
                        return ImageType.Jpeg;
                    case "Bmp":
                        return ImageType.Bmp;
                    default:
                        return ImageType.Png;
                }
            }

            protected void Page_Load(object sender, EventArgs e)
            {
                if (!IsPostBack)
                {
                    imageFormatComboBox.SelectedValue = "Png";

                    urlPanel.Visible = convertUrlRadioButton.Checked;
                    htmlStringPanel.Visible = !convertUrlRadioButton.Checked;

                    sampleCodeLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Code_Samples/CSharp/AspNet/HTML_to_Image/HTML_to_Image.html"));
                    descriptionLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Descriptions/AspNet/HTML_to_Image/HTML_to_Image.html"));

                    Master.CollapseAll();
                    Master.ExpandNode("HTML_to_Image");
                    Master.SelectNode("Convert_HTML_to_Image");
                }
            }

            protected void convertUrlRadioButton_CheckedChanged(object sender, EventArgs e)
            {
                urlPanel.Visible = convertUrlRadioButton.Checked;
                htmlStringPanel.Visible = !convertUrlRadioButton.Checked;
            }

            protected void convertHtmlRadioButton_CheckedChanged(object sender, EventArgs e)
            {
                urlPanel.Visible = convertUrlRadioButton.Checked;
                htmlStringPanel.Visible = !convertUrlRadioButton.Checked;
            }

            protected void imageFormatComboBox_SelectedIndexChanged(object sender, EventArgs e)
            {
                transparentBackgroundCheckBox.Visible = SelectedImageFormat() == ImageType.Png;
            }

            protected void demoMenu_MenuItemClick(object sender, MenuEventArgs e)
            {
                switch (e.Item.Value)
                {
                    case "Live_Demo":
                        demoMultiView.SetActiveView(liveDemoView);
                        break;
                    case "Description":
                        demoMultiView.SetActiveView(descriptionView);
                        break;
                    case "Sample_Code":
                        demoMultiView.SetActiveView(sampleCodeView);
                        break;
                    default:
                        break;
                }
            }
        }
    }