System.Diagnostics.Process.CreatePipe C# (CSharp) Method

        private void CreatePipe(out SafeFileHandle parentHandle, out SafeFileHandle childHandle, bool parentInputs)
        {
            Interop.Kernel32.SECURITY_ATTRIBUTES securityAttributesParent = new Interop.Kernel32.SECURITY_ATTRIBUTES();
            securityAttributesParent.bInheritHandle = Interop.BOOL.TRUE;

            SafeFileHandle hTmp = null;
            try
            {
                if (parentInputs)
                {
                    CreatePipeWithSecurityAttributes(out childHandle, out hTmp, ref securityAttributesParent, 0);
                }
                else
                {
                    CreatePipeWithSecurityAttributes(out hTmp,
                                                          out childHandle,
                                                          ref securityAttributesParent,
                                                          0);
                }
                // Duplicate the parent handle to be non-inheritable so that the child process 
                // doesn't have access. This is done for correctness sake, exact reason is unclear.
                // One potential theory is that child process can do something brain dead like 
                // closing the parent end of the pipe and there by getting into a blocking situation
                // as parent will not be draining the pipe at the other end anymore. 
                SafeProcessHandle currentProcHandle = Interop.Kernel32.GetCurrentProcess();
                if (!Interop.Kernel32.DuplicateHandle(currentProcHandle,
                                                     hTmp,
                                                     currentProcHandle,
                                                     out parentHandle,
                                                     0,
                                                     false,
                                                     Interop.Kernel32.HandleOptions.DUPLICATE_SAME_ACCESS))
                {
                    throw new Win32Exception();
                }
            }
            finally
            {
                if (hTmp != null && !hTmp.IsInvalid)
                {
                    hTmp.Dispose();
                }
            }
        }