/// <summary>
/// save the screenshot of current webpage in webbrowser
/// </summary>
public void saveBitmap(WebBrowser wb, string keyword)
{
if (wb.Document == null)
{
return;
}
try
{
int scrollWidth = 0;
int scrollHeight = 0;
scrollHeight = 768; //wb.Document.Body.ScrollRectangle.Height;
scrollWidth = 1366; //wb.Document.Body.ScrollRectangle.Width;
wb.Size = new Size(scrollWidth, scrollHeight);
Bitmap bm = new Bitmap(scrollWidth, scrollHeight);
wb.DrawToBitmap(bm, new Rectangle(0, 0, bm.Width, bm.Height));
string SaveAsName = null;
SaveAsName = Regex.Replace(keyword, "(\\\\|\\/|\\:|\\*|\\?|\\\"|\\<|\\>|\\|)?", "");
bm.Save(SaveAsName + ".png", System.Drawing.Imaging.ImageFormat.Png);
bm.Dispose();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
//
}
}
/// <summary>
/// Makes screenshot.
/// </summary>
protected void MakeScreenshot()
{
// Load the webpage into a WebBrowser control
WebBrowser wb = new WebBrowser();
wb.ScrollBarsEnabled = _scrollingEnabled;
wb.ScriptErrorsSuppressed = true;
wb.Navigate(_uri);
while (wb.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Set the size of the WebBrowser control
wb.Width = _imageWidth;
wb.Height = _imageHeight;
// Take Screenshot of the web pages full width
if (_imageHeight < 0)
{
wb.Width = wb.Document.Body.ScrollRectangle.Width;
wb.Height = wb.Document.Body.ScrollRectangle.Height;
}
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
wb.Dispose();
_image = bitmap;
}
private void wb_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser wb = (WebBrowser)sender;
// 网页加载完毕才保存
if (wb.ReadyState == WebBrowserReadyState.Complete)
{
// 获取网页高度和宽度,也可以自己设置
int height = wb.Document.Body.ScrollRectangle.Height;
int width = wb.Document.Body.ScrollRectangle.Width;
// 调节webBrowser的高度和宽度
wb.Height = height;
wb.Width = width;
Bitmap bitmap = new Bitmap(width, height); // 创建高度和宽度与网页相同的图片
Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域
wb.DrawToBitmap(bitmap, rectangle); // 截图
// 保存图片对话框
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "JPEG (*.jpg)|*.jpg|PNG (*.png)|*.png";
saveFileDialog.ShowDialog();
bitmap.Save(saveFileDialog.FileName); // 保存图片
}
}
//************************************************************************
// Sets a flag when the Document is completely loaded
private static Bitmap WebImageAsBitmap(String url)
{
WaitForNavigate(url);
HtmlElementCollection images = webBrowser.Document.Images;
if (images.Count == 1)
{
HtmlElement imageElement = images[0];
Rectangle imageRectangle = imageElement.OffsetRectangle;
// Set Bitmap Size (including the Offset)
Bitmap bitmap = new Bitmap(imageElement.ClientRectangle.Width + imageElement.OffsetRectangle.X,
imageElement.ClientRectangle.Height + imageElement.OffsetRectangle.Y);
// Set the Size of the Browser such the hole image can be captured
Size webBrowserSize = new Size();
webBrowserSize.Width = imageRectangle.Width + webBrowser.Size.Width;
webBrowserSize.Height = imageRectangle.Height + +webBrowser.Size.Height;
webBrowser.Size = webBrowserSize;
// Include the Offset in the Width and Height
imageRectangle.Width += imageRectangle.X;
imageRectangle.Height += imageRectangle.Y;
// Remove the offset, since the browser will always draw from his top left point
imageRectangle.X = 0;
imageRectangle.Y = 0;
// Draws the Browser into the Bitmap
webBrowser.DrawToBitmap(bitmap, imageRectangle);
// Get the original Image
bitmap = CropImage(bitmap, imageElement.OffsetRectangle);
return(bitmap);
}
throw new Exception("You can only load Image Pages");
}
public void webtoPic(WebBrowser webBrowser)
{
// 网页加载完毕才保存
if (webBrowser.ReadyState == WebBrowserReadyState.Complete)
{
// 获取网页高度和宽度,也可以自己设置
int height = webBrowser.Document.Body.ScrollRectangle.Height;
int width = webBrowser.Document.Body.ScrollRectangle.Width;
// 调节webBrowser的高度和宽度
webBrowser.Height = height;
webBrowser.Width = width;
Bitmap bitmap = new Bitmap(width, height); // 创建高度和宽度与网页相同的图片
Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域
webBrowser.DrawToBitmap(bitmap, rectangle); // 截图
// 保存图片对话框
// SaveFileDialog saveFileDialog = new SaveFileDialog();
// saveFileDialog.Filter = "JPEG (*.jpg)|*.jpg|PNG (*.png)|*.png";
// saveFileDialog.ShowDialog();
// bitmap.Save(saveFileDialog.FileName); // 保存图片
// panel2.BackgroundImage = bitmap;
pictureBox_radar.BackgroundImage = bitmap;
}
}
void wb_ProgressChanged(object sender, WebBrowserProgressChangedEventArgs e)
{
if (e.CurrentProgress == e.MaximumProgress)
{
wb.ProgressChanged -= wb_ProgressChanged;
try
{
int scrollWidth = 0;
int scrollHeight = 0;
scrollHeight = wb.Document.Body.ScrollRectangle.Height;
scrollWidth = wb.Document.Body.ScrollRectangle.Width;
wb.Size = new Size(scrollWidth, scrollHeight);
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
for (int Xcount = 0; Xcount < bitmap.Width; Xcount++)
{
for (int Ycount = 0; Ycount < bitmap.Height; Ycount++)
{
bitmap.SetPixel(Xcount, Ycount, Color.Black);
}
}
wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
bitmap.Save(outFile, ImageFormat.Png);
}
catch { }
}
}
public Bitmap GenerateScreenshot(string url, int width, int height)
{
// Load the webpage into a WebBrowser control
WebBrowser wb = new WebBrowser();
wb.ScrollBarsEnabled = false;
wb.ScriptErrorsSuppressed = true;
wb.Navigate(url);
// while (wb.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); }
// Set the size of the WebBrowser control
wb.Width = width;
wb.Height = height;
if (width == -1)
{
// Take Screenshot of the web pages full width
wb.Width = wb.Document.Body.ScrollRectangle.Width;
}
if (height == -1)
{
// Take Screenshot of the web pages full height
wb.Height = wb.Document.Body.ScrollRectangle.Height;
}
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
wb.Dispose();
return(bitmap);
}
public Bitmap DrawBitmap()
{
this.Height = MyBrowser.Document.Body.OffsetRectangle.Bottom;
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(Width, this.Height, 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, Width, this.Height);
g.DrawImage(imgOutput, oRectangle);
try
{
return((Bitmap)oThumbNail);
}
catch (Exception)
{
return(null);
}
finally
{
imgOutput.Dispose();
imgOutput = null;
MyBrowser.Dispose();
MyBrowser = null;
}
}
private static void wb_callback(Object sender, WebBrowserDocumentCompletedEventArgs args)
{
WebBrowser wb = (WebBrowser)sender;
if (wb.ReadyState == WebBrowserReadyState.Complete)
{
//将浏览器的长宽设置成参数里的长宽
wb.Width = para.m_WinWidth;
wb.Height = para.m_WinHeight;
int left = para.m_Left;
int top = para.m_Top;
int width = para.m_SnapWidth;
int height = para.m_SnapHeight;
Bitmap tmp = new Bitmap(para.m_WinWidth, para.m_WinHeight);
Rectangle rect = new Rectangle(0, 0, para.m_WinWidth, para.m_WinHeight);
wb.DrawToBitmap(tmp, rect); //进行截图,完整的一张图
Bitmap bm = new Bitmap(width, height);
Graphics g = Graphics.FromImage(bm);
Rectangle src = new Rectangle(left, top, width, height);
Rectangle des = new Rectangle(0, 0, width, height);
g.DrawImage(tmp, des, src, GraphicsUnit.Pixel);
bm.Save(para.m_Path); //将截图储存
SnapUtil.result = new SnapResult(tmp);
}
}
private static void _browser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
// http://support.microsoft.com/kb/180366
// document completed event gets fired multiple times (once for each frame)
// the top level frame firing this event last with ReadyState == Complete
if (_browser.ReadyState == WebBrowserReadyState.Complete)
{
Bitmap bitmap = new Bitmap(PREVIEW_WIDTH, PREVIEW_HEIGHT);
Rectangle rect = new Rectangle(0, 0, PREVIEW_WIDTH, PREVIEW_HEIGHT);
_browser.DrawToBitmap(bitmap, rect);
// turn image into byte[] so it's easier to work with
MemoryStream imageStream = new MemoryStream();
bitmap.Save(imageStream, ImageFormat.Jpeg);
byte[] imageBytes = imageStream.ToArray();
// cache image
_cache.Add(_loadingUrl, imageBytes);
// clean up
bitmap.Dispose();
imageStream.Close();
_loadingUrl = string.Empty;
// notify subscribers
OnDocumentCompleted(imageBytes);
}
}
public Bitmap GenerateScreenshot(string url)
{
try
{
// Load the webpage into a WebBrowser control
WebBrowser wb = new WebBrowser();
wb.ScrollBarsEnabled = false;
wb.ScriptErrorsSuppressed = true;
wb.Navigate(url);
// waits for the page to be completely loaded
while (wb.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Take Screenshot of the web pages full width + some padding
wb.Width = wb.Document.Body.ScrollRectangle.Height;
// Take Screenshot of the web pages full height
wb.Height = wb.Document.Body.ScrollRectangle.Height;
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
wb.DrawToBitmap(bitmap, new System.Drawing.Rectangle(0, 0, wb.Width, wb.Height));
wb.Dispose();
return(bitmap);
}
catch (Exception ex)
{
EpointMessage.MsgOk(ex.ToString());
return(null);
}
}
//
// Process the contents of a fully loaded WebBrowser control
//
private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser webBrowser = (WebBrowser)sender;
try
{
webBrowser.ClientSize = new Size(this.width, this.height);
webBrowser.ScrollBarsEnabled = false;
if (this.renderImage)
{
this.capture = new Bitmap(webBrowser.Bounds.Width, webBrowser.Bounds.Height);
webBrowser.BringToFront();
webBrowser.DrawToBitmap(capture, webBrowser.Bounds);
}
else
{
this.imageSrc = new List <string>();
HtmlElementCollection images = webBrowser.Document.Images;
for (int i = 0; i < images.Count; i++)
{
string src = ((mshtml.HTMLImgClass)webBrowser.Document.Images[i].DomElement).src;
if (!this.imageSrc.Contains(src))
{
this.imageSrc.Add(src);
}
}
}
}
catch (Exception)
{
}
webBrowser.Dispose();
docLoaded = true;
}
public Bitmap CaptureWebPage(string URL)
{
using (var webBrowser = new WebBrowser { ScrollBarsEnabled = false, ScriptErrorsSuppressed = true })
{
webBrowser.Navigate(URL);
while (webBrowser.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Thread.Sleep(2500);
const int width = 1500;
const int height = 1700; // webBrowser.Document.Body.ScrollRectangle.Height + 50;
webBrowser.Width = width;
webBrowser.Height = height;
Bitmap bitmap = new Bitmap(width, height);
webBrowser.DrawToBitmap(bitmap, new Rectangle(0, 0, width, height));
return bitmap;
}
}
/// <summary>
/// 网页加载完成事件处理函数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser webBrowser = (WebBrowser)sender;
// 网页加载完毕才保存
if (webBrowser.ReadyState == WebBrowserReadyState.Complete)
{
// 获取网页高度和宽度,也可以自己设置
//int height = webBrowser.Document.Body.ScrollRectangle.Height;
//int width = webBrowser.Document.Body.ScrollRectangle.Width;
int height = 700;
int width = 1050;
HtmlElement em = webBrowser.Document.GetElementById("J_1730_110100");
Debug.WriteLine(em);
// 调节webBrowser的高度和宽度
webBrowser.Height = height;
webBrowser.Width = width;
Bitmap bitmap = new Bitmap(width, height); // 创建高度和宽度与网页相同的图片
Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域
webBrowser.DrawToBitmap(bitmap, rectangle); // 截图
// 保存图片对话框
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "JPEG (*.jpg)|*.jpg|PNG (*.png)|*.png";
saveFileDialog.ShowDialog();
bitmap.Save(saveFileDialog.FileName); // 保存图片
}
}
private void DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser wb = sender as WebBrowser;
if (!wb.Document.Title.Equals("HTTP 404 Not Found"))
{
int scrollWidth = 0;
int scrollHeight = 0;
scrollHeight = wb.Document.Body.ScrollRectangle.Height;
scrollWidth = wb.Document.Body.ScrollRectangle.Width;
wb.Size = new Size(scrollWidth, scrollHeight);
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
for (int xcount = 0; xcount < bitmap.Width; xcount++)
{
for (int ycount = 0; ycount < bitmap.Height; ycount++)
{
bitmap.SetPixel(xcount, ycount, Color.Black);
}
}
wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
bitmap.Save(_filePath, ImageFormat.Png);
}
}
private Size RenderHtmlValue(
Graphics graphics,
Rectangle cellBounds,
string formattedValue,
bool drawCell)
{
using (var webBrowser = new WebBrowser())
{
webBrowser.ScrollBarsEnabled = false;
webBrowser.Navigate("about:blank");
webBrowser.Document.Write(formattedValue);
webBrowser.Size = Size;
var rect = new Rectangle(
webBrowser.Document.Body.ScrollRectangle.Location,
webBrowser.Document.Body.ScrollRectangle.Size);
rect.Width = Size.Width - cellBounds.X;
webBrowser.Size = rect.Size;
cellBounds = new Rectangle(cellBounds.X, cellBounds.Y, rect.Width, rect.Height);
var htmlBodyElement = webBrowser.Document.Body.DomElement as mshtml.IHTMLBodyElement;
htmlBodyElement.WhenNotNull(
bodyElement =>
{
cellBounds.Height += Convert.ToInt32(htmlBodyElement.bottomMargin);
});
if (drawCell)
{
using (var bitmap = new Bitmap(webBrowser.Width, webBrowser.Height))
{
webBrowser.DrawToBitmap(bitmap, targetBounds);
graphics.DrawImage(bitmap, location);
}
}
}
return(cellBounds.Size);
}
private void DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
// Now that the page is loaded, save it to a bitmap
WebBrowser browser = sender as WebBrowser;
browser.Visible = false;
try
{
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Rectangle bounds = Screen.PrimaryScreen.Bounds;
using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
{
browser.DrawToBitmap(bitmap, bounds);
bitmap.Save(imgPathInternal);
}
}
catch (ThreadAbortException)
{
Console.WriteLine("Error aborting thread, returning");
browser.Dispose();
return;
}
finally
{
browser.Dispose();
}
}
private Bitmap _GenerateScreenshot(string url, int width, int height)
{
// Load the webpage into a WebBrowser control
WebBrowser webBrowser = new WebBrowser();
webBrowser.ScrollBarsEnabled = false;
webBrowser.ScriptErrorsSuppressed = true;
webBrowser.Navigate(url);
// wait for iiiiiiiiiiiit...
while (webBrowser.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Set the size of the WebBrowser control
webBrowser.Width = width;
webBrowser.Height = height;
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Bitmap bitmap = new Bitmap(webBrowser.Width, webBrowser.Height);
webBrowser.DrawToBitmap(bitmap, new Rectangle(0, 0, webBrowser.Width, webBrowser.Height));
webBrowser.Dispose();
return(bitmap);
}
/// <summary>
/// 网页加载完成事件处理函数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser webBrowser = (WebBrowser)sender;
webBrowser.Document.Window.Error += new HtmlElementErrorEventHandler(Window_Error);
// 网页加载完毕才保存
if (webBrowser.ReadyState == WebBrowserReadyState.Complete)
{
// 获取网页高度和宽度,也可以自己设置
int height = webBrowser.Document.Body.ScrollRectangle.Height;
int width = webBrowser.Document.Body.ScrollRectangle.Width + this.RightWidthPadding;
// 调节webBrowser的高度和宽度
webBrowser.Height = height;
webBrowser.Width = width;
using (Bitmap bitmap = new Bitmap(width, height)) // 创建高度和宽度与网页相同的图片
{
Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域
webBrowser.DrawToBitmap(bitmap, rectangle); // 截图
if (ImageStream == null)
{
ImageStream = new MemoryStream();
}
bitmap.Save(ImageStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
Reset.Set();
}
}
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);
//WebBrowser webBrowser = (WebBrowser) sender;
//{
// // 网页加载完毕才保存
// if (webBrowser.ReadyState == WebBrowserReadyState.Complete)
// {
// // 获取网页高度和宽度,也可以自己设置
// int height = webBrowser.Document.Body.ScrollRectangle.Height;
// int width = webBrowser.Document.Body.ScrollRectangle.Width;
// // 调节webBrowser的高度和宽度
// webBrowser.Height = height;
// webBrowser.Width = width;
// Bitmap bitmap = new Bitmap(width, height); // 创建高度和宽度与网页相同的图片
// Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域
// webBrowser.DrawToBitmap(bitmap, rectangle); // 截图
// // 保存图片
// m_Bitmap =
// (Bitmap)bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);
// }
//}
}
private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser webBrowser = (WebBrowser)sender;
webBrowser.ClientSize = new Size(this.width, this.height);
webBrowser.ScrollBarsEnabled = false;
bmp = new Bitmap(webBrowser.Bounds.Width, webBrowser.Bounds.Height);
webBrowser.BringToFront();
webBrowser.DrawToBitmap(bmp, webBrowser.Bounds);
Image img = bmp.GetThumbnailImage(thumbWidth, thumbHeight, null, IntPtr.Zero);
//string fileName = url.Replace("http://", "") + ".jpg";
//fileName = System.Web.HttpUtility.UrlEncode(fileName);
string fileName = GetImageFileName(url);
if (absolutePath != null && !File.Exists(absolutePath + fileName))
{
img.Save(absolutePath + fileName);
}
bmp = (Bitmap)img;
webBrowser.Dispose();
if (mre != null)
{
mre.Set();
}
}
private void browser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser browser = (WebBrowser)sender;
browser.Document.Window.Error += new HtmlElementErrorEventHandler(Window_Error);
//HtmlElementCollection imgs = browser.Document.GetElementsByTagName("img");
//foreach (HtmlElement item in imgs)
//{
// item.SetAttribute("src", "");
// item.Style = "display:none";
//}
Rectangle rec = browser.Document.Body.ScrollRectangle;
if (rec.Width < START_WIDTH)
{
rec.Width = START_WIDTH;
}
if (rec.Height < START_HEIGHT)
{
rec.Height = START_HEIGHT / 10;
}
bmp = new Bitmap(rec.Width, rec.Height);
browser.DrawToBitmap(bmp, browser.Bounds);
browser.Dispose();
mre.Set();
}
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)
{
Console.WriteLine(ex.Message);
return(null);
}
finally
{
imgOutput.Dispose();
imgOutput = null;
MyBrowser.Dispose();
MyBrowser = null;
}
}
static void Main()
{
int width = 800;
int height = 600;
using (WebBrowser browser = new WebBrowser())
using (ManualResetEvent completed = new ManualResetEvent(false))
{
browser.Width = width;
browser.Height = height;
browser.ScrollBarsEnabled = true;
browser.DocumentCompleted += (o, e) => completed.Set();
browser.Navigate("http://stackoverflow.com/");
while (!completed.WaitOne(TimeSpan.FromMilliseconds(100.0d)))
{
Application.DoEvents();
}
using (Graphics graphics = browser.CreateGraphics())
using (Bitmap bitmap = new Bitmap(width, height, graphics))
{
Rectangle bounds = new Rectangle(0, 0, width, height);
browser.DrawToBitmap(bitmap, bounds);
bitmap.Save("screenshot.bmp", ImageFormat.Bmp);
}
}
}
private Bitmap ExportUrlToImage(string url, int width, int height)
{
// Load the webpage into a WebBrowser control
WebBrowser wb = new WebBrowser();
wb.ScrollBarsEnabled = false;
wb.ScriptErrorsSuppressed = true;
// wb.Navigate(url);
wb.Navigate(url, null, null,
"User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36");
while (wb.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Set the size of the WebBrowser control
wb.Width = width;
wb.Height = height;
Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
wb.DrawToBitmap(bitmap, new System.Drawing.Rectangle(0, 0, wb.Width, wb.Height));
wb.Dispose();
return(bitmap);
}
private void DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser browser = sender as WebBrowser;
int w = browser.Document.Body.ScrollRectangle.Width;
int h = browser.Document.Body.ScrollRectangle.Height;
browser.ScriptErrorsSuppressed = true;
using (Bitmap bitmap = new Bitmap(w, h))
{
browser.DrawToBitmap(bitmap, new Rectangle(0, 0, browser.Width, browser.Height));
using (MemoryStream stream = new MemoryStream())
{
bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
byte[] bytes = stream.ToArray();
using (FileStream sw = new FileStream(@"c:\temp\1.png", FileMode.OpenOrCreate))
{
using (BinaryWriter bw = new BinaryWriter(sw))
{
bw.Write(bytes);
}
}
//imgScreenShot.Visible = true;
//imgScreenShot.ImageUrl = "data:image/png;base64," + Convert.ToBase64String(bytes);
}
}
}
private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser m_WebBrowser = (WebBrowser)sender;
//自适应窗口大小
//scrollLeft, scrollTop, scrollWidth, scrollHeight, clientWidth, clientHeight
//---------------------------------------------------------------------------------
//Util.Debug(m_WebBrowser.Document.Body.GetAttribute("scrollHeight"));
//Util.Debug(m_WebBrowser.Document.Body.GetAttribute("scrollWidth"));
//-------------------------------------------------------------------------------
//OleDbHelper.AppendToFile(@"D:\wwwroot\chinaqmzxco29607\upload\debug.txt", Environment.NewLine
// + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + ": "+ m_WebBrowser.Document.Url.ToString()
// + Environment.NewLine);
//OleDbHelper.AppendToFile(@"D:\wwwroot\chinaqmzxco29607\upload\debug.txt",
// "scrollHeight = " + m_WebBrowser.Document.Body.GetAttribute("scrollHeight") + Environment.NewLine
// + "scrollWidth = " + m_WebBrowser.Document.Body.GetAttribute("scrollWidth") + Environment.NewLine);
if (this.m_BrowserWidth != 0)
{
this.m_BrowserWidth = int.Parse(m_WebBrowser.Document.Body.GetAttribute("scrollWidth"));
}
if (this.m_BrowserHeight != 0)
{
this.m_BrowserHeight = int.Parse(m_WebBrowser.Document.Body.GetAttribute("scrollHeight"));
}
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);
m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, this.m_BrowserHeight, null, IntPtr.Zero);
}
public Bitmap GenerateScreenshot(string html, int width, int height)
{
// Load the webpage into a WebBrowser control
WebBrowser _wb = new WebBrowser();
_wb.ScrollBarsEnabled = false;
_wb.ScriptErrorsSuppressed = true;
_wb.DocumentText = HtmlUtility.TrimScript(html);
_wb.ScriptErrorsSuppressed = true;
while (_wb.ReadyState != WebBrowserReadyState.Complete)
{
Application.DoEvents();
}
// Set the size of the WebBrowser control
_wb.Width = width;
_wb.Height = height;
if (width == -1)
{
// Take Screenshot of the web pages full width
if (_wb.Document.Body.ScrollRectangle.Width != 0)
{
_wb.Width = _wb.Document.Body.ScrollRectangle.Width;
}
else
{
_wb.Width = 1024;
}
}
if (height == -1)
{
// Take Screenshot of the web pages full height
if (_wb.Document.Body.ScrollRectangle.Height != 0)
{
_wb.Height = _wb.Document.Body.ScrollRectangle.Height;
}
else
{
_wb.Height = 768;
}
}
try
{
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
Bitmap _bitmap = new Bitmap(_wb.Width, _wb.Height);
_wb.DrawToBitmap(_bitmap, new Rectangle(0, 0, _wb.Width, _wb.Height));
_wb.Dispose();
return(_bitmap);
}
catch
{
return(null);
}
}
public void TakeSnapshot(string location)
{
try
{
WebBrowser wb = (WebBrowser)GetCurrentWB();
if (wb != null)
{
if (wb.ReadyState == WebBrowserReadyState.Complete)
{
int width = wb.Document.Body.ScrollRectangle.Width;
int height = wb.Document.Body.ScrollRectangle.Height;
_bitmap = new Bitmap(width, height);
wb.Dock = DockStyle.None;
wb.ScrollBarsEnabled = false;
wb.Size = _bitmap.Size;
wb.DrawToBitmap(_bitmap, wb.Bounds);
if (location != "")
{
_bitmap.Save(location);
}
wb.Dock = DockStyle.Fill;
wb.ScrollBarsEnabled = true;
}
}
}
catch { }
}
private static Image RenderOperationWithBrowser(TemplateObject to, string htmlToRender, Size size)
{
using (WebBrowser w = new WebBrowser())
{
w.AllowNavigation = true;
w.ScrollBarsEnabled = false;
w.ScriptErrorsSuppressed = true;
w.DocumentText = htmlToRender;
while (w.ReadyState != WebBrowserReadyState.Complete)
{
// Pump the message queue for the web browser.
Application.DoEvents();
}
// Set the size of the WebBrowser control
int suggestedWidth = w.Document.Body.ScrollRectangle.Width;
int suggestedHeight = w.Document.Body.ScrollRectangle.Height;
int realWidth = (suggestedWidth < size.Width) ? suggestedWidth : size.Width;
int realHeight = (suggestedHeight < size.Height) ? suggestedHeight : size.Height;
// If any of the Size-properties is set to zero, use the full size part.
w.Width = (realWidth > 0) ? realWidth : suggestedWidth;
w.Height = (realHeight > 0) ? realHeight : suggestedHeight;
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
using (Bitmap bitmap = new Bitmap(w.Width, w.Height))
{
w.DrawToBitmap(bitmap, new Rectangle(0, 0, w.Width, w.Height));
return((Image)bitmap.Clone());
}
}
}
