TypeLibTypeAttribute 类

定义

包含最初为此类型从 COM 类型库导入的 TYPEFLAGSContains the TYPEFLAGS that were originally imported for this type from the COM type library.

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

示例

下面的示例演示如何获取类或接口的 TypeLibTypeAttribute 值。The following example demonstrates how to get the TypeLibTypeAttribute value of a class or interface.

using namespace System;
using namespace System::Runtime::InteropServices;

ref class ClassB
{
private:
   static bool IsHiddenInterface( Type^ InterfaceType )
   {
      array<Object^>^InterfaceAttributes = InterfaceType->GetCustomAttributes( TypeLibTypeAttribute::typeid, false );
      if ( InterfaceAttributes->Length > 0 )
      {
         TypeLibTypeAttribute^ tlt = dynamic_cast<TypeLibTypeAttribute^>(InterfaceAttributes[ 0 ]);
         TypeLibTypeFlags flags = tlt->Value;
         return (flags & TypeLibTypeFlags::FHidden) != TypeLibTypeFlags(0);
      }

      return false;
   }
};
using System;
using System.Runtime.InteropServices;

namespace B
{
    class ClassB	
    {
        public static bool IsHiddenInterface( Type InterfaceType )
        {
            object[] InterfaceAttributes = InterfaceType.GetCustomAttributes( typeof( TypeLibTypeAttribute ), false );
            if( InterfaceAttributes.Length > 0 )
            {
                TypeLibTypeAttribute tlt = ( TypeLibTypeAttribute ) InterfaceAttributes[0];
                TypeLibTypeFlags  flags = tlt.Value;
                return ( flags & TypeLibTypeFlags.FHidden ) != 0; 
            }
            return false;
        }
    }
}

Imports System.Runtime.InteropServices

Module B
    Public Function IsHiddenInterface(ByVal InterfaceType As Type) As Boolean
        Dim InterfaceAttributes As Object() = _
        InterfaceType.GetCustomAttributes(GetType(TypeLibTypeAttribute), False)

        If InterfaceAttributes.Length > 0 Then
            Dim tlt As TypeLibTypeAttribute = InterfaceAttributes(0)
            Dim flags As TypeLibTypeFlags = tlt.Value
            Return (flags & TypeLibTypeFlags.FHidden) > 0
        End If

        Return False
    End Function
End Module

注解

Tlbimp.exe (类型库导入程序)将此特性应用于类或接口。The Tlbimp.exe (Type Library Importer) applies this attribute to classes or interfaces.

当导入类型库时,将应用此特性,并且永远不应更改。This attribute is applied when a type library is imported and should never be changed. 仅当该方法的 TYPEFLAGS 的计算结果为非零值时才适用。It is only applied when the method's TYPEFLAGS evaluate to non-zero. 特性旨在供需要了解原始 TYPEFLAGS 设置方式的工具使用。The attribute is designed to be used by tools that need to know how the original TYPEFLAGS were set. 公共语言运行时不使用此属性。The common language runtime does not use this attribute.

构造函数

TypeLibTypeAttribute(Int16)

使用指定的 TypeLibTypeAttribute 值初始化 TypeLibTypeFlags 类的新实例。Initializes a new instance of the TypeLibTypeAttribute class with the specified TypeLibTypeFlags value.

TypeLibTypeAttribute(TypeLibTypeFlags)

使用指定的 TypeLibTypeAttribute 值初始化 TypeLibTypeFlags 类的新实例。Initializes a new instance of the TypeLibTypeAttribute class with the specified TypeLibTypeFlags value.

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)
Value

获取此类型的 TypeLibTypeFlags 值。Gets the TypeLibTypeFlags value for this type.

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