【修改代码】怎样直接获取页面宽和高？？？
抓取网页快照的时候，下面的语句只能抓取指定尺寸的图片，有时候抓不全，有时候留下好多空白：
Bitmap bmp = HtmlToImg.GetHtmlToImg("http://www.baidu.com", 600, 500, 600, 500);
怎样直接获取被抓取页面的宽和高？谁能直接修改下面的代码帮我实现（网上搜的m_webBrowser.Document.Window.Size;可以吗？该怎么用？)：
aspx.cs

C# code

using System;using System.Collections.Generic;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Drawing;using System.IO;public partial class _Default : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {    }    protected void Button1_Click(object sender, EventArgs e)    {        Bitmap bmp = HtmlToImg.GetHtmlToImg("http://www.baidu.com", 600, 500, 600, 500);        MemoryStream stream = new MemoryStream();        bmp.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);        byte[] buff = stream.ToArray();        FileStream fs = new FileStream(Server.MapPath(DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg"), FileMode.Create);        stream.WriteTo(fs);        stream.Close();        fs.Close();    }}

HtmlToImage.cs

C# code

using System;using System.Drawing;using System.Threading;using System.Windows.Forms;/// <summary>/// 生成网页快照/// </summary>public class HtmlToImg{    Bitmap m_Bitmap;    string m_Url;    int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight;    public HtmlToImg(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)    {        m_Url = Url;        m_BrowserHeight = BrowserHeight;        m_BrowserWidth = BrowserWidth;        m_ThumbnailWidth = ThumbnailWidth;        m_ThumbnailHeight = ThumbnailHeight;    }    public static Bitmap GetHtmlToImg(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)    {        HtmlToImg thumbnailGenerator = new HtmlToImg(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight);        return thumbnailGenerator.GenerateHtmlToImgImage();    }    public Bitmap GenerateHtmlToImgImage()    {        Thread m_thread = new Thread(new ThreadStart(_GenerateHtmlToImgImage));        m_thread.SetApartmentState(ApartmentState.STA);        m_thread.Start();        m_thread.Join();        return m_Bitmap;    }    private void _GenerateHtmlToImgImage()    {        WebBrowser m_WebBrowser = new WebBrowser();        m_WebBrowser.ScrollBarsEnabled = false;        m_WebBrowser.Navigate(m_Url);        m_WebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);        while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)            Application.DoEvents();        m_WebBrowser.Dispose();    }    private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)    {        WebBrowser m_WebBrowser = (WebBrowser)sender;        m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight);        m_WebBrowser.ScrollBarsEnabled = false;        m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height);        m_WebBrowser.BringToFront();        m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds);        m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);    }}

[解决办法]
你可以试试WebBrowser 的Document对象的属性啊
如
webBrowser.Document.Body.ScrollRectangle.Height
or
webBrowser.Document.Body.OffsetRectangle.Bottom
[解决办法]
盛情难却呀，我来顶一下