对指定的网页进行截图 C#版.doc

对指定的网页进行截图 C#版碰到一个项目，需要对指定的网页进行截图保存，晕死！需求永远都是怪异的.解决是关键遂写了以下代码，快准狠!（因为赶时间！）可以实现对指定的页面获取，按指定的大小生成缩略图，当然也可以1：1的产生图，页面上的javascript 运行对截图貌似没任何影响，相当的正常，我个人都觉得很神奇。首先对项目添加系统引用System.Drawing;System.Drawing.Design;System.Windows.Forms;获取指定网页并转换成图片的类：using System; using System.Collections.Generic; using System.Text; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Windows.Forms; using System.Diagnostics; namespace MyLib public class GetImage private int S_Height; private int S_Width; private int F_Height; private int F_Width; private string MyURL; public int ScreenHeight get return S_Height; set S_Height = value; public int ScreenWidth get return S_Width; set S_Width = value; public int ImageHeight get return F_Height; set F_Height = value; public int ImageWidth get return F_Width; set F_Width = value; public string WebSite get return MyURL; set MyURL = value; public GetImage(string WebSite, int ScreenWidth, int ScreenHeight, int ImageWidth, int ImageHeight) this.WebSite = WebSite; this.ScreenWidth = ScreenWidth; this.ScreenHeight = ScreenHeight; this.ImageHeight = ImageHeight; this.ImageWidth = ImageWidth; public Bitmap GetBitmap() WebPageBitmap Shot = new WebPageBitmap(this.WebSite, this.ScreenWidth, this.ScreenHeight); Shot.GetIt(); Bitmap Pic = Shot.DrawBitmap(this.ImageHeight, this.ImageWidth); return Pic; class WebPageBitmap WebBrowser MyBrowser; string URL; int Height; int Width; public WebPageBitmap(string url, int width, int height) this.Height = height; this.Width = width; this.URL = url; MyBrowser = new WebBrowser(); MyBrowser.ScrollBarsEnabled = false; MyBrowser.Size = new Size(this.Width, this.Height); public void GetIt() MyBrowser.Navigate(this.URL); while (MyBrowser.ReadyState != WebBrowserReadyState.Complete) Application.DoEvents(); public Bitmap DrawBitmap(int theight, int twidth) Bitmap myBitmap = new Bitmap(Width, Height); Rectangle DrawRect = new Rectangle(0, 0, Width, Height); MyBrowser.DrawToBitmap(myBitmap, DrawRect); System.Drawing.Image imgOutput = myBitmap; System.Drawing.Image oThumbNail = new Bitmap(twidth, theight, imgOutput.PixelFormat); Graphics g = Graphics.FromImage(oThumbNail); g.CompositingQuality = CompositingQuality.HighSpeed; g.SmoothingMode = SmoothingMode.HighSpeed; g.InterpolationMode = InterpolationMode.HighQualityBilinear; Rectangle oRectangle = new Rectangle(0, 0, twidth, theight); g.DrawImage(imgOutput, oRectangle); try return (Bitmap)oThumbNail; catch (Exception ex) return null; finally imgOutput.Dispose(); imgOutput = null; MyBrowser.Dispose(); MyBrowser = null; 以下是调用方法，懒省事的方法，嘿嘿，赶时间就不说什么了，反正上面的抓取转换类已经写出来了，大家尽情的用异步，线程等方法自己玩吧！string UrlPath; bool CaptureState = false; Guid guid; protected bool SaveOriginalPageToImage(Guid myGuid) /使用guid 来命名 guid = myGuid; if (this.CurrentPageAct = PageAct.Edit) string PagePath = Request.Url.LocalPath; PagePath = PagePath.Replace(Operation, Capture); UrlPath = PagePath + ?act=view&ProjectNo= + _projectNo; Thread NewTh = new Thread(CaptureImage); NewTh.SetApartmentState(ApartmentState.STA); NewTh.Start(); while (NewTh.ThreadState = ThreadState.Running) /返回截取状态 return CaptureState; return false; /*/ / 捕获屏幕 / / / public void CaptureImage() try string url = http:/ + Request.Url.Host + : + Request.Url.Port.ToString(); url = url + UrlPath; GetImage thumb = new GetImage(url, 1024, 1200, 1024, 1200); System.Drawing.Bitmap x = thumb.GetBitmap(); string FileName = DateTime.Now.ToString(yyyyMMddhhmmss); x.Save(Server.MapPath(/Capture/SavePage) + + guid + .jpg); CaptureState = true; catch (Exception ex) CaptureState = false; string UrlPath;bool CaptureState = false;Guid guid;protected bool SaveOriginalPageToImage(Guid myGuid)/使用guid 来命名guid = myGuid;if (this.CurrentPageAct = PageAct.Edit)string PagePath = Request.Url.LocalPath;PagePath = PagePath.Replace(Operation, Capture);UrlPath = PagePath + ?act=view&ProjectNo= + _projectNo;Thread NewTh = new Thread(CaptureImage);NewTh.SetApartmentState(ApartmentState.STA);NewTh.Start();while (NewTh.ThreadState = ThreadState.Running)/返回截取状态return CaptureState;return false;/*/ 捕获屏幕/ /public void CaptureImage()trystring url = http:/ + Request.Url.Host + : + Request.Url.Port.ToString();url = url + UrlPath;GetImage thumb = new GetImage(url, 1024, 1200, 1024, 1200);System.Drawing