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TypeLibTypeAttribute Class

Contains the TYPEFLAGS that were originally imported for this type from the COM type library.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)] 
[AttributeUsageAttribute(AttributeTargets::Class|AttributeTargets::Struct|AttributeTargets::Enum|AttributeTargets::Interface, Inherited=false)] 
public ref class TypeLibTypeAttribute sealed : public Attribute
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Interface, Inherited=false) */ 
public final class TypeLibTypeAttribute extends Attribute
ComVisibleAttribute(true) 
AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Interface, Inherited=false) 
public final class TypeLibTypeAttribute extends Attribute

The Type Library Importer (Tlbimp.exe) applies this attribute to classes or interfaces.

This attribute is applied when a type library is imported and should never be changed. It is only applied when the method's TYPEFLAGS evaluate to non-zero. The attribute is designed to be used by tools that need to know how the original TYPEFLAGS were set. The common language runtime does not use this attribute.

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;
   }
};

import System.*;
import System.Runtime.InteropServices.*;

class ClassB
{
    public static boolean IsHiddenInterface(Type InterfaceType)
    {
        Object interfaceAttributes[] 
            = InterfaceType.GetCustomAttributes(
            TypeLibTypeAttribute.class.ToType(), false);

        if (interfaceAttributes.length > 0) {
            TypeLibTypeAttribute tlt 
                = (TypeLibTypeAttribute)(interfaceAttributes.get_Item(0));
            TypeLibTypeFlags flags = tlt.get_Value();

            return (int)(flags & TypeLibTypeFlags.FHidden) != 0;
        }
        return false;
    } //IsHiddenInterface
} //ClassB

System.Object
   System.Attribute
    System.Runtime.InteropServices.TypeLibTypeAttribute
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0
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