using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using SHDocVw;
using mshtml;
using System.Threading;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            InternetExplorer ie = new InternetExplorer();
            IWebBrowserApp webBrowser = (IWebBrowserApp)ie;
            // 브라우져 크기 지정
            webBrowser.Height = 700;
            webBrowser.Width = 900;
            webBrowser.Visible = true;

            webBrowser.Navigate("http://www.google.com");

            Thread.Sleep(3000);

            IHTMLDocument2 doc2 = (IHTMLDocument2)webBrowser.Document;
            IHTMLDocument3 doc3 = (IHTMLDocument3)webBrowser.Document;

            // Document 속성 읽기
            string title = doc2.title;
            string url = doc2.url;
            textBox1.Text = url;

            // 특정 Element 컨트롤
            IHTMLElement q = doc3.getElementsByName("q").item("q", 0);
            q.setAttribute("value", "microsoft");

            IHTMLFormElement form = doc2.forms.item(Type.Missing, 0);
            form.submit();

        }

        private void button2_Click(object sender, System.EventArgs e)
        {
            try
            {
                // 특정 URL을 갖는 IE 찾기
                SHDocVw.WebBrowser wb = FindIE("https://www.google.co.kr/");

                // URL을 다른 것으로 변경
                if (wb != null)
                    wb.Navigate("www.bing.com");
            }
            catch (System.Exception)
            {

                throw;
            }

        }
        static SHDocVw.WebBrowser FindIE(string url)
        {
            Uri uri = new Uri(url);
            var shellWindows = new SHDocVw.ShellWindows();
            foreach (SHDocVw.WebBrowser wb in shellWindows)
            {
                Uri wbUri = new Uri(wb.LocationURL);
                if (wbUri.Equals(uri))
                {
                    return wb;
                }
            }
            return null;
        }

    }

}