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COM Interop mit Internet Explorer (SHDocVw, MSHTML) in C#
von Didier MEO, ICT Consultant engineer. 12.04.2009. E-Mail: meo_x@freenet.de
download source code (zip format)
using System;
//using System.Collections.Generic;
//using System.Linq;
//using System.Text;
using System.Runtime.InteropServices;
using System.Reflection;
//First add these references: SHDocVw.dll and mshtml.tlb
using mshtml;
using SHDocVw; // SHDocVw can be replaced by MeoSHDocVw
//MeoSHDocVw.dll is an interop dll for SHDocVW.dll with a strong name key in the file MeoSHDocVw.snk,
//created like this:
//1) run sn.exe -k MeoSHDocVw.snk
//2) After that run TlbImp.exe c:\windows\system32\ShdocVw.dll /keyfile:MeoSHDocVw.snk /out:MeoSHDocVw.dll
namespace ClassLibrary1
{
///
/// Autor: Didier Meo, ICT Consultant, developed for http://www.meo-x.net
///
public class IExplorer
{
#region class variables & Constructor
//private static SHDocVw.InternetExplorer _Explorer = null;
private static SHDocVw.IWebBrowserApp _Webbrowser = null;
private static mshtml.HTMLDocument _objDocument = null;
private SHDocVw.ShellWindows _ShellWindows = null;
private int _iIEnr = 0;
private bool _blnSearchedExplorer = false;
private string _strSearchedTitle = null;
private string _strContent = null, _strContentAll = null, _strLocationURL = null, _strTitle = null;
private int _iFrameNumber = 0;
///
/// Constructor for IExplorer
///
public IExplorer()
{
this._strSearchedTitle = "";
this._Init();
}
#endregion
#region Properties
///
/// Location URL
///
public string HttpUrl
{
get
{
return _strLocationURL;
}
set
{
_strLocationURL = (string)value.ToString();
}
}
///
/// Searched Title
///
public string SearchedTitle
{
set
{
_strSearchedTitle = (string)value.ToString();
}
}
///
/// Content for a Frame or for a page without Frames
///
public string Content
{
get
{
return this._strContent;
}
}
///
/// Content of an HTML page without Frames or Content for all Frames separated by STX
///
public string ContentAll
{
get
{
return this._strContentAll;
}
}
///
/// Title of an HTML page
///
public string Title
{
get
{
return this._strTitle;
}
}
///
/// Number of frames for an HTML page
///
public int FrameNumber
{
get
{
return this._iFrameNumber;
}
}
#endregion
#region Methods
///
/// Initialization of Variables
///
[ComVisible(false)]
private void _Init()
{
this._strContent = "";
this._strContentAll = "";
this._strLocationURL = "";
this._strTitle = "";
this._iFrameNumber = 0;
this._iIEnr = 0;
}
///
/// Gett Internet Explorer Data (URL, Title, Content) for a searched HTML page or for all its frames.
///
public void GetIExplorerData()
{
this._Init();
this._blnSearchedExplorer = false;
_ShellWindows = new SHDocVw.ShellWindows();
_iIEnr = _ShellWindows.Count;
if (_iIEnr < 1)
{
this._blnSearchedExplorer = false;
return;
}
_objDocument = new mshtml.HTMLDocument();
for (int nI = 0; nI < _iIEnr; nI++)
{
object index = (object)nI;
_strLocationURL = "";
_strTitle = "";
object oSWItem = _ShellWindows.Item(index);
_Webbrowser = (IWebBrowserApp)oSWItem;
try
{
_objDocument = (mshtml.HTMLDocument)_Webbrowser.Document;
_strLocationURL = _Webbrowser.LocationURL;
_strTitle = _objDocument.title;
if (_strTitle.IndexOf(this._strSearchedTitle) > -1)
{
this._blnSearchedExplorer = true;
}
}
catch (System.Exception exc)
{
if (nI >= _iIEnr - 1)
{
return;
}
}
//
if (this._blnSearchedExplorer)
{
this._strContent = "";
this._strContentAll = "";
mshtml.FramesCollection oFrameCol = _objDocument.frames;
this._iFrameNumber = oFrameCol.length;
if (_iFrameNumber == 0)
{
try
{
this._strContent = _objDocument.body.outerHTML;
this._strContentAll = this._strContent;
}
catch (System.Exception exc)
{
return;
}
return;
}
this._strContent = "";
this._strContentAll = "";
this._iFrameNumber = 0;
IHTMLElementCollection iElcol = _objDocument.getElementsByTagName("frame");
foreach (IHTMLElement iEl in iElcol)
{
HTMLFrameElement frm = (HTMLFrameElement)iEl;
DispHTMLDocument doc = (DispHTMLDocument)((SHDocVw.IWebBrowser2)frm).Document;
if (_iFrameNumber > 0) this._strContentAll += Convert.ToChar(2); //STX (start of text) = ASCII CHAR(2)
this._strContent = doc.body.outerHTML;
this._strContentAll += this._strContent;
_iFrameNumber++;
}
return;
}
else
{
this._strContent = "";
this._strContentAll = "";
_iFrameNumber = -1;
_strLocationURL = "";
_strTitle = "";
}
}
}
#endregion
}
}
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COM Interop mit Internet Explorer (SHDocVw, MSHTML) in Visual Basic.Net (VB.Net)
von Didier MEO, ICT Consultant engineer. 01.05.2009. E-Mail: meo_x@freenet.de
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