using Microsoft.Win32;
using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Console_21697048
{
/// <summary>
/// http://stackoverflow.com/q/21697048/1768303
/// </summary>
internal class Program2
{
//const string HTML = "<!DOCTYPE html><body style='background-color: grey'><div style='background-color: blue; opacity: 0.2; color: yellow'>This is a text</div></body>";
const string FILE_NAME = @"d:\webpage.png";
//readonly static Size IMAGE_SIZE = new Size(320, 200);
// Main
public static void Main2(string[] args)
{
try
{
// enable HTML5 etc (assuming we're running IE9+)
SetFeatureBrowserFeature("FEATURE_BROWSER_EMULATION", 9000);
// force software rendering
SetFeatureBrowserFeature("FEATURE_IVIEWOBJECTDRAW_DMLT9_WITH_GDI", 1);
SetFeatureBrowserFeature("FEATURE_GPU_RENDERING", 0);
using (var apartment = new AnfleCrawler.Common.MessageLoopApartment())
{
// create WebBrowser on a seprate thread with its own message loop
var webBrowser = apartment.Invoke(() => new WebBrowser());
// navigate and wait for the result
apartment.Invoke(() =>
{
var pageLoadedTcs = new TaskCompletionSource<bool>();
webBrowser.DocumentCompleted += (s, e) =>
pageLoadedTcs.TrySetResult(true);
//webBrowser.DocumentText = HTML;
webBrowser.Navigate(AnfleCrawler.UITest.IEForm.ConstUris.Taobao);
return pageLoadedTcs.Task;
}).Wait();
// save the picture
apartment.Invoke(() =>
{
webBrowser.Size = webBrowser.Document.Body.ScrollRectangle.Size;
webBrowser.Document.InvokeScript("eval", new object[]{@" window.addEventListener('load', function () {
alert('test!');
window.focus();
window.scrollTo(0, document.documentElement.offsetHeight);
});"});
var rectangle = new Rectangle(0, 0, webBrowser.Width, webBrowser.Height);
System.Threading.Thread.Sleep(20000);
// get reference DC
using (var screenGraphics = webBrowser.CreateGraphics())
{
var screenHdc = screenGraphics.GetHdc();
// create a metafile
using (var metafile = new Metafile(screenHdc, rectangle, MetafileFrameUnit.Pixel))
{
using (var graphics = Graphics.FromImage(metafile))
{
var hdc = graphics.GetHdc();
//var rect = new Rectangle(0, 0, 320, 50);
OleDraw(webBrowser.ActiveXInstance, DVASPECT_CONTENT, hdc, ref rectangle);
graphics.ReleaseHdc(hdc);
}
// save the metafile as bitmap
metafile.Save(FILE_NAME, ImageFormat.Png);
}
screenGraphics.ReleaseHdc(screenHdc);
}
});
// dispose of webBrowser
apartment.Invoke(() => webBrowser.Dispose());
webBrowser = null;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
// interop
const uint DVASPECT_CONTENT = 1;
[DllImport("ole32.dll", PreserveSig = false)]
static extern void OleDraw(
[MarshalAs(UnmanagedType.IUnknown)] object pUnk,
uint dwAspect,
IntPtr hdcDraw,
[In] ref System.Drawing.Rectangle lprcBounds);
// WebBrowser Feature Control
// http://msdn.microsoft.com/en-us/library/ie/ee330733(v=vs.85).aspx
static void SetFeatureBrowserFeature(string feature, uint value)
{
if (LicenseManager.UsageMode != LicenseUsageMode.Runtime)
return;
var appName = System.IO.Path.GetFileName(System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName);
Registry.SetValue(@"HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\" + feature,
appName, value, RegistryValueKind.DWord);
}
public static void GetImage(WebBrowser webBrowser)
{
var rectangle = new Rectangle(0, 0, webBrowser.Width, webBrowser.Height);
//System.Threading.Thread.Sleep(20000);
// get reference DC
using (var screenGraphics = webBrowser.CreateGraphics())
{
var screenHdc = screenGraphics.GetHdc();
// create a metafile
using (var metafile = new Metafile(screenHdc, rectangle, MetafileFrameUnit.Pixel))
{
using (var graphics = Graphics.FromImage(metafile))
{
var hdc = graphics.GetHdc();
//var rect = new Rectangle(0, 0, 320, 50);
OleDraw(webBrowser.ActiveXInstance, DVASPECT_CONTENT, hdc, ref rectangle);
graphics.ReleaseHdc(hdc);
}
// save the metafile as bitmap
metafile.Save(FILE_NAME, ImageFormat.Png);
}
screenGraphics.ReleaseHdc(screenHdc);
}
}
}
}
