ExtensibleClassFactory.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Runtime / InteropServices / ExtensibleClassFactory.cs / 1305376 / ExtensibleClassFactory.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*==============================================================================
** 
** Class: ExtensibleClassFactory 
**
** 
** Purpose: Methods used to customize the creation of managed objects that
**          extend from unmanaged objects.
**
** 
=============================================================================*/
 
namespace System.Runtime.InteropServices { 
    using System.Runtime.InteropServices;
    using System.Runtime.Remoting; 
    using System.Runtime.CompilerServices;
    using System.Runtime.Versioning;

    using System; 
[System.Runtime.InteropServices.ComVisible(true)]
    public sealed class ExtensibleClassFactory 
    { 

        // Prevent instantiation. 
        private ExtensibleClassFactory() {}

        // Register a delegate that will be called whenever an instance of a managed
        // type that extends from an unmanaged type needs to allocate the aggregated 
        // unmanaged object. This delegate is expected to allocate and aggregate the
        // unmanaged object and is called in place of a CoCreateInstance. This 
        // routine must be called in the context of the static initializer for the 
        // class for which the callbacks will be made.
        // It is not legal to register this callback from a class that has any 
        // parents that have already registered a callback.
        [System.Security.SecuritySafeCritical]  // auto-generated
        [ResourceExposure(ResourceScope.None)]
        [MethodImplAttribute(MethodImplOptions.InternalCall)] 
        public static extern void RegisterObjectCreationCallback(ObjectCreationDelegate callback);
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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