C / C++ / MFC

// Security attributes.
SECURITY_ATTRIBUTES sa;
::ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
sa.nLength= sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;

// Save the handle to the current STDOUT.
HANDLE hStdOutOld = GetStdHandle(STD_OUTPUT_HANDLE);

HANDLE hStdOutReadTmp;

// Create the child stdout pipe.
if ( !::CreatePipe(&hStdOutReadTmp, &m_hStdOut, &sa, 0) )
{
    MessageBox("Error: CreatePipe");
    return;
}

if( !::SetStdHandle(STD_OUTPUT_HANDLE, m_hStdOut) )
{
    ::CloseHandle( hStdOutReadTmp );
    ::CloseHandle( m_hStdOut );
    MessageBox("Error: SetStdHandle");
    return;
}

BOOL fSuccess = DuplicateHandle(GetCurrentProcess(), hStdOutReadTmp,
    GetCurrentProcess(), &m_hStdOutRead, 0, FALSE, DUPLICATE_SAME_ACCESS);

if ( !fSuccess )
{
    MessageBox("Error: DuplicateHandle");
    return;
}

CloseHandle(hStdOutReadTmp);

CEdit *pEdit = (CEdit*)(this->GetDlgItem(IDC_EDIT));
m_hStdOut = (HANDLE)pEdit->GetSafeHwnd();

if( !::SetStdHandle(STD_OUTPUT_HANDLE, m_hStdOut) )
{
    ::CloseHandle( m_hStdOut );
    MessageBox("Error: SetStdHandle");
    return;
}