1 /// 
 2     /// WebBrowser Url生成图片 3     /// HTML转图片 4     /// 
 5     public class WebSnapshotsHelper 6     { 7         Bitmap m_Bitmap; 8         string m_Url; 9         int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight;10         public WebSnapshotsHelper(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)11         {12             m_Url = Url;13             m_BrowserHeight = BrowserHeight;14             m_BrowserWidth = BrowserWidth;15             m_ThumbnailWidth = ThumbnailWidth;16             m_ThumbnailHeight = ThumbnailHeight;17         }18         public static Bitmap GetWebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)19         {20             WebSnapshotsHelper thumbnailGenerator = new WebSnapshotsHelper(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight);21             return thumbnailGenerator.GenerateWebSiteThumbnailImage();22         }23         public Bitmap GenerateWebSiteThumbnailImage()24         {25             Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage));26             m_thread.SetApartmentState(ApartmentState.STA);27             m_thread.Start();28             m_thread.Join();29             return m_Bitmap;30         }31         private void _GenerateWebSiteThumbnailImage()32         {33             WebBrowser m_WebBrowser = new WebBrowser();34             m_WebBrowser.ScrollBarsEnabled = false;35             m_WebBrowser.Navigate(m_Url);36             m_WebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);37             while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)38             {39                 Application.DoEvents();40             }41             m_WebBrowser.Dispose();42         }43         private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)44         {45             WebBrowser m_WebBrowser = (WebBrowser)sender;46             m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight);47             m_WebBrowser.ScrollBarsEnabled = false;48             m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height);49             m_WebBrowser.BringToFront();50             m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds);51             m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);52         }53 54     }