一、前言

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;namespace EasyActivex
{[ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8F20-00805F2CD064")][InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]public interface IObjectSafety{[PreserveSig]int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);[PreserveSig()]int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);}
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace EasyActivex
{//这个Guid，网页调用的时候用到，Mark[Guid("685F0A47-944D-4145-BF4E-76A02A422B02")]//这里要实现IObjectSafety接口public partial class EUserControl : UserControl, IObjectSafety  {public EUserControl(){InitializeComponent();}#region IObjectSafety  接口成员实现（直接拷贝即可）private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;private const int S_OK = 0;private const int E_FAIL = unchecked((int)0x80004005);private const int E_NOINTERFACE = unchecked((int)0x80004002);private bool _fSafeForScripting = true;private bool _fSafeForInitializing = true;public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions){int Rslt = E_FAIL;string strGUID = riid.ToString("B");pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;switch (strGUID){case _IID_IDispatch:case _IID_IDispatchEx:Rslt = S_OK;pdwEnabledOptions = 0;if (_fSafeForScripting == true)pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;break;case _IID_IPersistStorage:case _IID_IPersistStream:case _IID_IPersistPropertyBag:Rslt = S_OK;pdwEnabledOptions = 0;if (_fSafeForInitializing == true)pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;break;default:Rslt = E_NOINTERFACE;break;}return Rslt;}public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions){int Rslt = E_FAIL;string strGUID = riid.ToString("B");switch (strGUID){case _IID_IDispatch:case _IID_IDispatchEx:if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) && (_fSafeForScripting == true))Rslt = S_OK;break;case _IID_IPersistStorage:case _IID_IPersistStream:case _IID_IPersistPropertyBag:if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) && (_fSafeForInitializing == true))Rslt = S_OK;break;default:Rslt = E_NOINTERFACE;break;}return Rslt;}#endregion/// <summary>/// 打开记事本/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnOpenNote_Click(object sender, EventArgs e){System.Diagnostics.Process.Start("notepad.exe"); }}
}