using System;
using System.Drawing;
using System.Windows.Forms;

namespace hiddenBrowser
{
    public partial class hiddenBrowserForm : Form
    {
        Uri Url;
        bool firstFlag = false;
        const int maxCount = 10;
        int updateCount = maxCount;

        public String firstString { get; set; }

        public hiddenBrowserForm(String url)
        {
            InitializeComponent();
            firstString = "";
            Url = new Uri(url);
            Hide();
        }

        private void Form1_Shown(object sender, EventArgs e)
        {
            webBrowser1.ScriptErrorsSuppressed = true;
            webBrowser1.Url = Url;
            firstFlag = true;
            timer2.Enabled = true;
        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            if (true == firstFlag)
            {
                firstString = webBrowser1.Document.Body.OuterHtml;
                timer1.Enabled = true;
            }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if ((null != webBrowser1.Document) && (null != webBrowser1.Document.Body))
            {
                String s = webBrowser1.Document.Body.OuterHtml;

                updateCount--;

                if (firstString != s)
                {
                    firstString = s;
                    updateCount = maxCount;

                }
            }

            if (0 == updateCount)
            {
                Close();
            }
        }

        private void timer2_Tick(object sender, EventArgs e)
        {
            if ((null != webBrowser1.Document) && (null != webBrowser1.Document.Body))
            {
                firstString = webBrowser1.Document.Body.OuterHtml;
            }
            Close();
        }

    }
}