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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:FDL$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: http://www.gnu.org/copyleft/fdl.html.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\example quitinstaller
\ingroup qtifwexamples
\title Quit Installer Example
\image qtifw-examples-quitinstaller.png
\brief Using a component script to quit an installer.
\e{Quit Installer} illustrates how to use the \c Component() function to
display a message box to end users for quitting the installation if some
requirements for the installation are not met.
\include installerfw-examples-configuring.qdocinc
\quotefile quitinstaller/config/config.xml
\include installerfw-examples-packaging.qdocinc
\list
\li The \c <Default> element is set to \c true to preselect the
component in the installer.
\li The \c <Script> element specifies the file name of the JavaScript
file that is loaded to perform operations.
\endlist
\quotefile quitinstaller/packages/org.qtproject.ifw.example.quitinstaller/meta/package.xml
\section1 Quitting the Installation
In installscript.js, we use the \c Component() function to display a
message box for quitting the installer to end users:
\quotefromfile quitinstaller/packages/org.qtproject.ifw.example.quitinstaller/meta/installscript.js
\skipto Component()
\printuntil QMessageBox.Ok
If end users select \uicontrol OK, we use the \c installer::setValue()
function to display a message and the \c installer.setDefaultPageVisible()
function to hide the subsequent installer pages:
\printuntil NextButton
If end users select \uicontrol Cancel, we display the default installer
pages and use the \c installer::setValue() function to display another
message on the last installer page:
\printuntil /^\}/
\include installerfw-examples-generating.qdocinc
*/
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