TypeLibVarAttribute Class


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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)]
public sealed class TypeLibVarAttribute : Attribute


Initializes a new instance of the TypeLibVarAttribute class with the specified System.Runtime.InteropServices.TypeLibVarFlags value.


Initializes a new instance of the TypeLibVarAttribute class with the specified System.Runtime.InteropServices.TypeLibVarFlags value.


When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)


Gets the TypeLibVarFlags value for this field.


This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)


Returns the hash code for this instance.(Inherited from Attribute.)


Gets the Type of the current instance.(Inherited from Object.)


When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)


When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)


Returns a string that represents the current object.(Inherited from Object.)

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

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)


Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

The Tlbimp.exe (Type Library Importer) 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;

.NET Framework
Available since 1.1

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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