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我有一个显示一些银色灯光控件的网页。我需要以编程方式截取此网页的屏幕截图。

当前使用 System.Windows.Forms.WebBrowser 控件进行屏幕截图。

当我为普通页面截屏时,Forms.WebBrowser 工作正常。但是对于具有 Silverlight 控件的页面,它不起作用。

我的截图代码如下: Bitmap bitmap = null; 使用 (WebBrowser webBrowser = new WebBrowser()) { webBrowser.ScrollBarsEnabled = false; webBrowser.ScriptErrorsSuppressed = true;

            // Set the size of the WebBrowser control
            webBrowser.Width = width;
            webBrowser.Height = height;

            // Load the webpage into a WebBrowser control
            webBrowser.Navigate(url);
            while (webBrowser.ReadyState != WebBrowserReadyState.Complete)
            {
                Application.DoEvents();
            }

            if (width == -1)
            {
                // Take Screenshot of the web pages full width
                webBrowser.Width = webBrowser.Document.Body.ScrollRectangle.Width;
            }

            if (height == -1)
            {
                // Take Screenshot of the web pages full height
                webBrowser.Height = webBrowser.Document.Body.ScrollRectangle.Height;

            }

            // Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
            bitmap = new Bitmap(webBrowser.Width, webBrowser.Height);
            webBrowser.DrawToBitmap(bitmap, new Rectangle(0, 0, webBrowser.Width, webBrowser.Height));

}

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1 回答 1

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我使用此代码拍摄网页的截图:

    string myPicsPath = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures) + @"\SchreenshotFolder\";
    if (System.IO.Directory.Exists(myPicsPath))
    {
      Rectangle bounds = yourBrowser.Bounds;
      using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
      {
        using (Graphics g = Graphics.FromImage(bitmap))
        {
          g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
        }
        bitmap.Save(myPicsPath + System.IO.Path.GetRandomFileName() + ".png", System.Drawing.Imaging.ImageFormat.Png);
      }
    }
    else
    {
      System.IO.Directory.CreateDirectory(myPicsPath);
      MessageBox.Show("Screenshot directory created in " + Environment.GetFolderPath(Environment.SpecialFolder.MyPictures) + @"\" + " named SchreenshotFolder\nScreenshot is not saved. Hit button again to save it.");
    }

Web 浏览器控件的结构边界包含截取屏幕截图所需的一切。或者,如果您想将其用作缩略图,您可以减小位图的大小。

于 2012-10-05T19:02:53.967 回答