Digia Qt Commercial

Commercial License Usage
Licensees holding valid commercial Qt licenses may use this file in
accordance with the commercial license agreement provided with the
Software or, alternatively, in accordance with the terms contained in
a written agreement between you and Digia.  For licensing terms and
conditions see http://qt.digia.com/licensing.  For further information
use the contact form at http://qt.digia.com/contact-us.