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/*!
    \page qtcore-index.html
    \title Qt Core

    \brief The Qt Core module is part of Qt's essential modules.

    \section1 Getting Started
    All other Qt modules rely on this module. To include the
    definitions of the module's classes, use the following directive:

    \snippet code/doc_src_qtcore.cpp 0

    If you use \l qmake to build your projects, Qt Core is included by default.

    \section1 Core Functionalities

    Qt adds these features to C++:

    \list
    \li a very powerful mechanism for seamless object communication called
    signals and slots
    \li queryable and designable object properties
    \li hierarchical and queryable object trees that organize
    \li object ownership in a natural way with guarded pointers (QPointer)
    \li a dynamic cast that works across library boundaries
    \endlist

    The following pages provide more information about Qt's core features:
    \list
    \li \l{The Meta-Object System}
    \li \l{The Property System}
    \li \l{Object Model}
    \li \l{Object Trees & Ownership}
    \li \l{Signals & Slots}
    \endlist

    \section1 Threading and Concurrent Programming

    Qt provides thread support in the form of platform-independent \l{Threading
    Classes}{threading classes}, a thread-safe way of posting events, and
    signal-slot connections across threads. Multithreaded programming is also a
    useful paradigm for performing time-consuming operations without freezing
    the user interface of an application.

    The \l{Thread Support in Qt} page contains information on implementing
    threads in applications. Additional concurrent classes are provided by the
    \l{Qt Concurrent} module.

    \section1 Input/Output, Resources, and Containers

    Qt provides a resource system for organizing application files and assets,
    a set of containers, and classes for receiving input and printing output.
    \list
    \li \l{Container Classes}
    \li \l{Serializing Qt Data Types}
    \li \l{Implicit Sharing}
    \endlist

    In addition, Qt Core provides a platform-independent mechanism for storing
    binary files in the application's executable.

    \list
    \li \l{The Qt Resource System}
    \endlist

    \section1 Additional Frameworks
    Qt Core also provides some of Qt's key frameworks.

    \list
    \li \l{The Animation Framework}
    \li \l{JSON Support in Qt}
    \li \l{The State Machine Framework}
    \li \l{How to Create Qt Plugins}
    \li \l{The Event System}
    \endlist

    \section1 Licenses and Attributions

    Qt Core is available under commercial licenses from \l{The Qt Company}.
    In addition, it is available under the
    \l{GNU Lesser General Public License, version 3}, or
    the \l{GNU General Public License, version 2}.
    See \l{Qt Licensing} for further details.

    Executables on Windows potentially link
    against \l{The qtmain Library}. This library is available
    under commercial licenses, and in addition under the
    \l{BSD 3-clause "New" or "Revised" License}.

    Furthermore Qt Core potentially contains third party
    modules under following permissive licenses:

    \generatelist{groupsbymodule attributions-qtcore}

    \section1 Reference
    These are links to the API reference materials.
    \list
    \li \l{Qt Core C++ Classes}{C++ Classes}
        \list
        \li \l{Animation Framework}{Animation Classes}
        \li \l{Threading Classes}
        \li \l{Container Classes}
        \li \l{Plugin Classes}
        \li \l{Implicitly Shared Classes}
        \li \l{State Machine Classes}
        \li \l{Input/Output and Networking}{Input/Output Classes}
        \li \l{Event Classes}
        \endlist
    \endlist

*/
