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TypeLibVarAttribute Class

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

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

[AttributeUsageAttribute(AttributeTargets.Field, Inherited=false)] 
[ComVisibleAttribute(true)] 
public sealed class TypeLibVarAttribute : Attribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Field, Inherited=false) */ 
/** @attribute ComVisibleAttribute(true) */ 
public final class TypeLibVarAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Field, Inherited=false) 
ComVisibleAttribute(true) 
public final class TypeLibVarAttribute extends Attribute
Not applicable.

The Type Library Importer (Tlbimp.exe) applies this attribute to fields.

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

The following example demonstrates how to get the TypeLibVarAttribute value of a field.


using System;
using System.Reflection;
using System.Runtime.InteropServices;

namespace D
{
	class ClassD
	{
		public static bool IsHiddenField( FieldInfo fi )
		{
			object[] FieldAttributes = fi.GetCustomAttributes( typeof( TypeLibVarAttribute ), true);
		
			if( FieldAttributes.Length > 0 )
			{
				TypeLibVarAttribute tlv = ( TypeLibVarAttribute )FieldAttributes[0];
				TypeLibVarFlags  flags = tlv.Value;
				return ( flags & TypeLibVarFlags.FHidden ) != 0; 
			}
			return false;
		}
	}
}

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

class ClassD
{
    public static boolean IsHiddenField(FieldInfo fi)
    {
        Object fieldAttributes[] =
            fi.GetCustomAttributes(TypeLibVarAttribute.class.ToType(), true);

        if (fieldAttributes.length > 0) {
            TypeLibVarAttribute tlv = (TypeLibVarAttribute)fieldAttributes[0];
            TypeLibVarFlags flags = tlv.get_Value();
            return Convert.ToInt32(flags & TypeLibVarFlags.FHidden) != 0;
        }
        return false;
    } //IsHiddenField
} //ClassD

System.Object
   System.Attribute
    System.Runtime.InteropServices.TypeLibVarAttribute

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 Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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