[code:c#]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using System.Xml;
using System.Web;

namespace WordPress_Updater
{
    class blogUpdater
    {
        int postID;
        private string login;
        private string pass;
        private string url;
        public string title;
        public string content;
        private string postXML;
        private string action;
        private string dataToPost;
        public string serverResponse;
        public string categories;
        private string xmlParams;

        public blogUpdater(string _url, string _login, string _password)
        {
            this.login = _login;
            this.pass = _password;
            this.url = _url;
        }

        private string post2xml(string _title, string _categories, string _content)
        {
            string postXML = "<title>" + _title + "</title>" +
                "<category>" + _categories + "</category>" +
                _content;

            return postXML;
        }

        private void addXmlParam(string _type, string _value)
        {
            xmlParams += "<param>" +
                            " <value>";
            if (_value != "") xmlParams += "  <" + _type + ">" + _value + "</" + _type + ">";
            else xmlParams += "<" + _type + "/>";

            xmlParams += " </value>" +
                          " </param>";
        }

        public bool newPost()
        {
            this.action = "blogger.newPost";
            xmlParams = string.Empty;
            postXML = post2xml(this.title, this.categories, this.content);
            postXML = HttpUtility.HtmlEncode(postXML);

            this.dataToPost = "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>" +
                "<methodCall>" +
                "<methodName>" + action + "</methodName>" +
                "<params>";
            this.addXmlParam("string", "");
            this.addXmlParam("string", "");
            this.addXmlParam("string", this.login);
            this.addXmlParam("string", this.pass);
            this.addXmlParam("string", postXML);
            this.addXmlParam("boolean", "1");
            this.dataToPost += this.xmlParams;
            this.dataToPost += "</params>" +
                "</methodCall>";
           
            return sendRequest();
        }

        private bool sendRequest()
        {
            WebRequest web = WebRequest.Create(this.url);
            web.Method = "POST";
            //web.ContentLength = this.dataToPost.Length;
            web.ContentType = "text/xml";

            Stream request = web.GetRequestStream();
            StreamWriter sw = new StreamWriter(request);
            sw.Write(this.dataToPost);
            sw.Flush();
            sw.Close();
            request.Close();

            WebResponse response = web.GetResponse();
            Stream responseData = response.GetResponseStream();
            StreamReader sr = new StreamReader(responseData);
            this.serverResponse = sr.ReadToEnd();

            sr.Close();
            responseData.Close();
            response.Close();

            return true;
        }

    }
}
[/code]

[code:c#]
            blogUpdater wp = new blogUpdater("http://PrzykladowyBlog***.wordpress.com/xmlrpc.php", login, haslo);
                    wp.content = “Treść wpisu”;
                    wp.title = “Tytuł wpisu”;
                    wp.categories = "0"; //do jakich kategorii chcemy go dodać – podajemy id po przecinku
                    wp.newPost();
                    //wp.serverResponse //odpowiedź XML serwera
[/code]