ComRegisterFunctionAttribute 类

定义

指定从 COM 中注册使用的程序集时要调用的方法;这样可以在注册进程中执行用户编写的代码。Specifies the method to call when you register an assembly for use from COM; this enables the execution of user-written code during the registration process.

public ref class ComRegisterFunctionAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Method, Inherited=false)]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class ComRegisterFunctionAttribute : Attribute
type ComRegisterFunctionAttribute = class
    inherit Attribute
Public NotInheritable Class ComRegisterFunctionAttribute
Inherits Attribute
继承
ComRegisterFunctionAttribute
属性

示例

下面的示例演示如何使用适当的签名将 ComRegisterFunctionAttributeComUnregisterFunctionAttribute 应用于方法。The following example demonstrates how to apply ComRegisterFunctionAttribute and ComUnregisterFunctionAttribute to methods with the appropriate signature.

using namespace System;
using namespace System::Runtime::InteropServices;
public ref class MyClassThatNeedsToRegister
{
public:

   [ComRegisterFunctionAttribute]
   static void RegisterFunction( Type^ t )
   {
      
      //Insert code here.
   }


   [ComUnregisterFunctionAttribute]
   static void UnregisterFunction( Type^ t )
   {
      
      //Insert code here.
   }

};

using System;
using System.Runtime.InteropServices;

public class MyClassThatNeedsToRegister
{
   [ComRegisterFunctionAttribute]
   public static void RegisterFunction(Type t)
   {
      //Insert code here.
   }
   
   [ComUnregisterFunctionAttribute]
   public static void UnregisterFunction(Type t)
   {
      //Insert code here.
   }
}
Imports System.Runtime.InteropServices

Public Class MyClassThatNeedsToRegister
    
    <ComRegisterFunctionAttribute()> Public Shared Sub _
      RegisterFunction(t As Type)
        'Insert code here.
    End Sub
    
    <ComUnregisterFunctionAttribute()> Public Shared Sub _
      UnregisterFunction(t As Type)
        'Insert code here.
    End Sub
End Class

注解

可以将此特性应用于方法。You can apply this attribute to methods.

ComRegisterFunctionAttribute 使你能够添加任意注册代码以满足 COM 客户端的要求。ComRegisterFunctionAttribute enables you to add arbitrary registration code to accommodate the requirements of COM clients. 例如,可以使用 Microsoft.Win32 命名空间中的注册函数更新注册表。For example, you can update the registry using registration functions from the Microsoft.Win32 namespace. 如果提供了注册方法,还应将 System.Runtime.InteropServices.ComUnregisterFunctionAttribute 应用到注销方法,这会反转注册方法中完成的操作。If you provide a registration method, you should also apply System.Runtime.InteropServices.ComUnregisterFunctionAttribute to an unregistration method, which reverses the operations done in the registration method.

.NET Framework: 当公共语言运行时使用Regasm (程序集注册)工具注册(直接或间接)其包含的程序集(直接或间接)或通过 RegistrationServices.RegisterAssembly 方法时,公共语言运行时将使用此属性调用方法。.NET Framework: The common language runtime calls the method with this attribute when its containing assembly is registered (directly or indirectly) with the Regasm.exe (Assembly Registration) tool) or through the RegistrationServices.RegisterAssembly method.

.Net Core: 当通过RegSvr32 工具注册包含程序集的 COM 主机时,公共语言运行时将调用具有此特性的方法。.NET Core: The common language runtime calls the method with this attribute when its containing assembly's COM host is registered via the RegSvr32.exe tool.

此属性只能应用于具有以下特征的方法:This attribute can be applied only to methods that have the following characteristics:

  • 范围: Any (public、private 等)。Scope: Any (public, private, and so on).

  • 类型:staticType: static.

  • 参数:接受单个 Type 参数或 String 参数类型。Parameters: Accepts a single Type parameter or a String parameter type.

  • 返回类型: voidReturn type: void.

构造函数

ComRegisterFunctionAttribute()

初始化 ComRegisterFunctionAttribute 类的新实例。Initializes a new instance of the ComRegisterFunctionAttribute class.

属性

TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute.

(继承自 Attribute)

方法

Equals(Object)

返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object.

(继承自 Attribute)
GetHashCode()

返回此实例的哈希代码。Returns the hash code for this instance.

(继承自 Attribute)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
IsDefaultAttribute()

在派生类中重写时,指示此实例的值是否是派生类的默认值。When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(继承自 Attribute)
Match(Object)

当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(继承自 Attribute)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)

显式接口实现

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

将一组名称映射为对应的一组调度标识符。Maps a set of names to a corresponding set of dispatch identifiers.

(继承自 Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

检索对象的类型信息,然后可以使用该信息获取接口的类型信息。Retrieves the type information for an object, which can be used to get the type information for an interface.

(继承自 Attribute)
_Attribute.GetTypeInfoCount(UInt32)

检索对象提供的类型信息接口的数量(0 或 1)。Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(继承自 Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object.

(继承自 Attribute)

适用于

另请参阅