- 首先新建项目--->类库,取名:ActiveXDemo
- 右键项目属性:应用属性==>程序集信息=>使程序集Com可见,
- 生成==>输出==>为com互操作注册
- 新建接口类取名:IObjectSafety,以下代码可直接用,最好不要修改
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Runtime.InteropServices; 5 using System.Text; 6 7 namespace ActiveXDemo 8 { 9 [ComImport, Guid("CB5BDC81-93C1-11CF-8F20-00805F2CD064")] 10 [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 11 public interface IObjectSafety 12 { 13 [PreserveSig] 14 int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions); 15 [PreserveSig()] 16 int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions); 17 } 18 }
新建用户控件取名:UserControl1,UserControl1继承自上面新建的接口IObjectSafety,并实现接口(实现接口的方法请复制下面的内容),在类UserControl1添加Guid特性值,利用VS的工具生成guid
using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Linq; using System.Text; using System.Windows.Forms; using System.Runtime.InteropServices; namespace ActiveXDemo { [Guid("C5BD015D-E2AA-4DD3-AEB7-93D7409FA751")] public partial class UserControl1 : UserControl, IObjectSafety { public UserControl1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { MessageBox.Show("ActiveXDemo"); }
