Export (0) Print
Expand All

TypeLibVarAttribute Class

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

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

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

[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets.Field, Inherited = false)]
public sealed class TypeLibVarAttribute : Attribute

The TypeLibVarAttribute type exposes the following members.

  NameDescription
Public methodTypeLibVarAttribute(Int16)Initializes a new instance of the TypeLibVarAttribute class with the specified System.Runtime.InteropServices.TypeLibVarFlags value.
Public methodTypeLibVarAttribute(TypeLibVarFlags)Initializes a new instance of the TypeLibVarAttribute class with the specified System.Runtime.InteropServices.TypeLibVarFlags value.
Top

  NameDescription
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
Public propertyValueGets the TypeLibVarFlags value for this field.
Top

  NameDescription
Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Top

  NameDescription
Explicit interface implemetationPrivate method_Attribute.GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
Top

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

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Show:
© 2014 Microsoft