CoTaskMemHandle.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / Log / System / IO / Log / CoTaskMemHandle.cs / 1 / CoTaskMemHandle.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.IO.Log
{ 
    using System;
    using System.Runtime.InteropServices; 
    using System.Runtime.ConstrainedExecution; 
    using System.Security;
 
    internal sealed class CoTaskMemHandle : SafeHandle
    {
        public CoTaskMemHandle() : base(IntPtr.Zero, true)
        { 
        }
 
        public override bool IsInvalid 
        {
            get 
            {
                return IsClosed || this.handle == IntPtr.Zero;
            }
        } 

        [DllImport("ole32.dll"), 
         SuppressUnmanagedCodeSecurity, 
         ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
        private static extern void CoTaskMemFree(IntPtr ptr); 

        override protected bool ReleaseHandle()
        {
            CoTaskMemFree(this.handle); 
            return true;
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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