C#完成在網頁中依據url截圖並輸入到網頁的辦法。本站提示廣大學習愛好者:(C#完成在網頁中依據url截圖並輸入到網頁的辦法)文章只能為提供參考,不一定能成為您想要的結果。以下是C#完成在網頁中依據url截圖並輸入到網頁的辦法正文
本文實例講述了C#完成在網頁中依據url截圖並輸入到網頁的辦法。分享給年夜家供年夜家參考,詳細以下:
網頁截圖是許多站點的一個小需求,這段代碼完成的是若何依據url取得網頁截圖並輸入到網頁中。
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Threading; using System.Windows.Forms; using System.Drawing; using System.IO; /// <summary> /// This page show the way of generate a image in website /// </summary> public partial class Default2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Bitmap m_Bitmap = WebSiteThumbnail.GetWebSiteThumbnail("http://www.谷歌.cn", 600, 600, 600, 600); MemoryStream ms = new MemoryStream(); m_Bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);//JPG、GIF、PNG等都可 byte[] buff = ms.ToArray(); Response.BinaryWrite(buff); } } public class WebSiteThumbnail { Bitmap m_Bitmap; string m_Url; int m_BrowserWidth, m_BrowserHeight, m_ThumbnailWidth, m_ThumbnailHeight; public WebSiteThumbnail(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 GetWebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight) { WebSiteThumbnail thumbnailGenerator = new WebSiteThumbnail(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight); return thumbnailGenerator.GenerateWebSiteThumbnailImage(); } public Bitmap GenerateWebSiteThumbnailImage() { Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage)); m_thread.SetApartmentState(ApartmentState.STA); m_thread.Start(); m_thread.Join(); return m_Bitmap; } private void _GenerateWebSiteThumbnailImage() { 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); } }
願望本文所述對年夜家C#法式設計有所贊助。