C#基于WebBrowser的IE内核浏览器完整实例

C#基于WebBrowser的IE内核浏览器完整实例

using System.Security;
using System.ComponentModel;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Windows.Forms;
using System.Security.Permissions;

namespace ExtendedWebBrowser2
{
  /// <summary>
  /// An extended version of the <see cref="WebBrowser"/> control.
  /// </summary>
  class ExtendedWebBrowser : System.Windows.Forms.WebBrowser
  {

    private UnsafeNativeMethods.IWebBrowser2 axIWebBrowser2;

    /// <summary>
    /// This method supports the .NET Framework infrastructure and is not intended to be used directly from your code. 
    /// Called by the control when the underlying ActiveX control is created. 
    /// </summary>
    /// <param name="nativeActiveXObject"></param>
    [PermissionSet(SecurityAction.LinkDemand, Name = "FullTrust")]
    protected override void AttachInterfaces(object nativeActiveXObject)
    {
      this.axIWebBrowser2 = (UnsafeNativeMethods.IWebBrowser2)nativeActiveXObject;
      base.AttachInterfaces(nativeActiveXObject);
    }

    /// <summary>
    /// This method supports the .NET Framework infrastructure and is not intended to be used directly from your code. 
    /// Called by the control when the underlying ActiveX control is discarded. 
    /// </summary>
    [PermissionSet(SecurityAction.LinkDemand, Name = "FullTrust")]
    protected override void DetachInterfaces()
    {
      this.axIWebBrowser2 = null;
      base.DetachInterfaces();
    }

    /// <summary>
    /// Returns the automation object for the web browser
    /// </summary>
    public object Application
    {
      get { return axIWebBrowser2.Application; }
    }

    System.Windows.Forms.AxHost.ConnectionPointCookie cookie;
    WebBrowserExtendedEvents events;    ……   （略）