CoTaskMemHandle.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Log / System / IO / Log / CoTaskMemHandle.cs / 1305376 / 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.Runtime.Versioning;
    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)] 
        [ResourceExposure(ResourceScope.None)]
        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.
//-----------------------------------------------------------
namespace System.IO.Log
{ 
    using System;
    using System.Runtime.InteropServices; 
    using System.Runtime.ConstrainedExecution; 
    using System.Runtime.Versioning;
    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)] 
        [ResourceExposure(ResourceScope.None)]
        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.

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