Реально рабочий пример получения изображения из WebBrowser на C#.
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WebBrowserGetImage { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { HtmlDocument htmlDocument = this.webBrowser1.Document; HtmlElementCollection htmlElementCollection = htmlDocument.Images; foreach (HtmlElement htmlElement in htmlElementCollection) { string imgUrl = htmlElement.GetAttribute("src"); if (imgUrl.StartsWith("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjii4LsueWMRchpnjU2_-GGB05hF0ps3o-FCM0xocku_menSHqhEmDGh07Vr5nzonvZzFt_GmSEkyNEwocFk6R6eq5fvMnZqTyN5qi0HJclMDvcXP2fwYAiolJZDQrXUddlHYyYnd67tVZx/s1600/OpenVPN.png")) { this.pictureBox1.ImageLocation = imgUrl; } } } private void Form1_Load(object sender, EventArgs e) { webBrowser1.Navigate("http://nmdsoft.blogspot.ru/"); } } }Спасибо автору!