SafeLibraryHandle.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 / fx / src / CompMod / Microsoft / Win32 / SafeHandles / SafeLibraryHandle.cs / 1305376 / SafeLibraryHandle.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  SafeLibraryHandle 
**
** Author: David Gutierrez ([....])  
**
** A wrapper for a library handles
**
** Date:  July 8, 2002 
**
===========================================================*/ 
 
using System;
using System.Security; 
using System.Security.Permissions;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using Microsoft.Win32; 
using Microsoft.Win32.SafeHandles;
using System.Runtime.ConstrainedExecution; 
using System.Runtime.Versioning; 

namespace Microsoft.Win32.SafeHandles { 
    [HostProtectionAttribute(MayLeakOnAbort = true)]
    [SuppressUnmanagedCodeSecurityAttribute]
    internal sealed class SafeLibraryHandle : SafeHandleZeroOrMinusOneIsInvalid
    { 
        // Note that LoadLibraryEx returns 0 on failure
 
        internal SafeLibraryHandle() : base(true) {} 

        [DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Unicode, SetLastError=true)] 
        [ResourceExposure(ResourceScope.Machine)]
        internal static extern SafeLibraryHandle LoadLibraryEx(string libFilename, IntPtr reserved, int flags);

        [DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Unicode)] 
        [ResourceExposure(ResourceScope.None)]
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] 
        private static extern bool FreeLibrary(IntPtr hModule); 

        override protected bool ReleaseHandle() 
        {
            return FreeLibrary(handle);
        }
 
    }
} 
 

 


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

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