Qt Documentation

Contents

Qt UI Tools

Getting Started

Qt Designer forms are processed at run-time to produce dynamically-generated user interfaces. In order to generate a form at run-time, a resource file containing a UI file is needed. Applications that use the form handling classes need to be configured to be built against the Qt UI Tools module. This is done by including the following declaration in a qmake project file to ensure that the application is compiled and linked appropriately.

QT += uitools

A form loader object, provided by the QUiLoader class, is used to construct the user interface. This user interface can be retrieved from any QIODevice. For example, a QFile object can be used to obtain a form stored in a project's resources. The QUiLoader::load() function takes the user interface description contained in the file and constructs the form widget.

To include the definitions of the module's classes, use the following directive:

#include <QtUiTools>

Licenses and Attributions

Qt UI Tools is available under commercial licenses from The Qt Company. Since Qt 5.11, it is also available under the BSD 3-Clause "New" or "Revised" License:

Copyright (C) 2018 The Qt Company Ltd.

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 The Qt Company. For licensing terms
and conditions see https://www.qt.io/terms-conditions. For further
information use the contact form at https://www.qt.io/contact-us.

BSD License Usage
Alternatively, you may use this file under the terms of the BSD license
as follows:

"Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in
    the documentation and/or other materials provided with the
    distribution.
  * Neither the name of The Qt Company Ltd nor the names of its
    contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.


THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."

API Reference

These are links to the API reference materials.

Examples

© 2020 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.