TypeLibTypeAttribute TypeLibTypeAttribute TypeLibTypeAttribute TypeLibTypeAttribute Class

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.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Struct | System.AttributeTargets.Enum | System.AttributeTargets.Interface, Inherited=false)]
[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
TypeLibTypeAttributeTypeLibTypeAttributeTypeLibTypeAttributeTypeLibTypeAttribute
属性

示例

下面的示例演示如何获取TypeLibTypeAttribute类或接口的值。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
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.

当类型库导入,应永远不会更改时应用此特性。This attribute is applied when a type library is imported and should never be changed. 它是应用的时,才方法的TYPEFLAGS的计算结果为非零值。It is only applied when the method's TYPEFLAGS evaluate to non-zero. 该属性旨在供需要了解的工具如何原始TYPEFLAGS设置。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) TypeLibTypeAttribute(Int16) TypeLibTypeAttribute(Int16) TypeLibTypeAttribute(Int16)

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

TypeLibTypeAttribute(TypeLibTypeFlags) TypeLibTypeAttribute(TypeLibTypeFlags) TypeLibTypeAttribute(TypeLibTypeFlags) TypeLibTypeAttribute(TypeLibTypeFlags)

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

属性

TypeId TypeId TypeId 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.

(Inherited from Attribute)
Value Value Value Value

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

方法

Equals(Object) Equals(Object) Equals(Object) 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.

(Inherited from Attribute)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

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

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

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

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() 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.

(Inherited from Attribute)
Match(Object) Match(Object) Match(Object) 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.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

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

(Inherited from Object)
ToString() ToString() ToString() ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

显式界面实现

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

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _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.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _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).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _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.

(Inherited from Attribute)

适用于

另请参阅