using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
// Add in these using clauses for this example
using System.Runtime.InteropServices;
using System.Text;
using System.Reflection;
using Microsoft.Win32;
namespace Webb.PublicCOM.TestCOM01
{
/**//// <summary>
/// Summary description for TestActiveX03.
/// </summary>
[ProgId("Webb.PublicCOM.TestActiveX03")]
[ClassInterface(ClassInterfaceType.AutoDual)]
public class TestActiveX03 : System.Windows.Forms.UserControl
{
private System.Windows.Forms.PictureBox pictureBox1;
/**//// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public TestActiveX03()
{
// This call is required by the Windows.Forms Form Designer.
InitializeComponent();
// TODO: Add any initialization after the InitializeComponent call
}
/**//// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
Component Designer generated code#region Component Designer generated code
/**//// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(TestActiveX03));
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(128, 40);
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// TestActiveX03
//
this.Controls.Add(this.pictureBox1);
this.Name = "TestActiveX03";
this.Size = new System.Drawing.Size(200, 152);
this.ResumeLayout(false);
}
#endregion
/**////
<summary>
/// Register the class as a control and set it's CodeBase entry
///
</summary>
///
<param name="key">The registry key of the control</param>
[ComRegisterFunction()]
public static void RegisterClass ( string key )
{
// Strip off HKEY_CLASSES_ROOT\ from the passed key as I don't need it
StringBuilder sb = new StringBuilder ( key ) ;
sb.Replace(@"HKEY_CLASSES_ROOT\","") ;
// Open the CLSID\{guid} key for write access
RegistryKey k = Registry.ClassesRoot.OpenSubKey(sb.ToString(),true);
// And create the 'Control' key - this allows it to show up in
// the ActiveX control container
RegistryKey ctrl = k.CreateSubKey ( "Control" ) ;
ctrl.Close ( ) ;
// Next create the CodeBase entry - needed if not string named and GACced.
RegistryKey inprocServer32 = k.OpenSubKey ( "InprocServer32" , true ) ;
inprocServer32.SetValue ( "CodeBase" , Assembly.GetExecutingAssembly().CodeBase ) ;
inprocServer32.Close ( ) ;
// Finally close the main key
k.Close ( ) ;
}
/**////
<summary>
/// Called to unregister the control
///
</summary>
///
<param name="key">Tke registry key</param>
[ComUnregisterFunction()]
public static void UnregisterClass ( string key )
{
StringBuilder sb = new StringBuilder ( key ) ;
sb.Replace(@"HKEY_CLASSES_ROOT\","") ;
// Open HKCR\CLSID\{guid} for write access
RegistryKey k = Registry.ClassesRoot.OpenSubKey(sb.ToString(),true);
// Delete the 'Control' key, but don't throw an exception if it does not exist
k.DeleteSubKey ( "Control" , false ) ;
// Next open up InprocServer32
RegistryKey inprocServer32 = k.OpenSubKey ( "InprocServer32" , true ) ;
// And delete the CodeBase key, again not throwing if missing
k.DeleteSubKey ( "CodeBase" , false ) ;
// Finally close the main key
k.Close ( ) ;
}
}
}
编译，然而用
Active Control Test Container 来测试和查看我们的
ActiveX:
可以看到，经过特殊方法实现后的对象可以在
ActiveX中查看的到，而且可以添加到容器中：
接下来的工作就是一些功能的实现细节问题了，本文暂时不讨论这些内容。
最后一个问题就是在其它语言中通过
COM来访问我们的
.net对象，我们在
C＋＋下经过测试并实现了一些细节问题，事件等。但源代码不在示例中。
总结：
.net开发
COM或者
ActiveX，其实是把写好的
.net对象（当然是准备暴露给
OS的），实现一些特殊的接口，通过工具把元数据导出成
COM可用的组件库数据，然后注册给
OS。运行时，通过
CCW来动态的管理与维护
.net对象。而对于用户来说，他就像访问
COM一样访问
.net对象。
MSDN参考：
http://msdn2.microsoft.com/zh-cn/library/8bwh56xe(VS.80).aspx http://msdn2.microsoft.com/zh-cn/library/e753eftz(vs.80).aspx 下载文档：
1、VS2003COM开发插件。
http://www.cnblogs.com/Files/WuCountry/CSComSetup.zip 2、示例项目代码。
http://www.cnblogs.com/Files/WuCountry/Webb.PublicCOM.zip 3、本文
doc文档。
http://www.cnblogs.com/Files/WuCountry/TempDoc.zip from:
http://www.cnblogs.com/topboy/archive/2007/01/22/627152.html
