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Converting HTML/CSS to an Image with C#


Example Code

This code creates a WebClient, sets credentials and POSTS the HTML & CSS as values to the API. The response will be json with the URL to the generated image.

using System.Net;
namespace htciExample
    class Program
        static void Main()
            byte[] result;
            string html = "<div class='ping'>Pong ✅</div>";
            string css = ".ping {padding: 20px; font-family:'sans-serif'; }";
            using (var client = new WebClient())
                client.Credentials = new NetworkCredential("user_id", "api_key");
                result = client.UploadValues(
                    new System.Collections.Specialized.NameValueCollection()
                        { "html", html }, { "css", css }
            string resultString = System.Text.Encoding.UTF8.GetString(result);

More examples

For more advanced examples, take a look here.