System.Runtime.InteropServices.GCHandle.InternalFree C# (CSharp) Method

        internal static extern void InternalFree(IntPtr handle);
        [MethodImplAttribute(MethodImplOptions.InternalCall)]

        public void Free()
        {
            IntPtr num = this.m_handle;

            if (!(num != IntPtr.Zero) || !(Interlocked.CompareExchange(ref this.m_handle, IntPtr.Zero, num) == num))
            {
                throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_HandleIsNotInitialized"));
            }
            if (GCHandle.s_probeIsActive)
            {
                GCHandle.s_cookieTable.RemoveHandleIfPresent(num);
            }
            GCHandle.InternalFree((IntPtr)((int)num & -2));
        }