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# QtCore Module

[Qt's Modules][Next: QtGui Module]

## Namespaces

Qt |
QtConcurrent |

## Classes

QtConcurrent::Exception |
QAbstractEventDispatcher |
QAbstractFileEngine |
QAbstractFileEngineHandler |
QAbstractFileEngineIterator |
QAbstractItemModel |
QAbstractListModel |
QAbstractTableModel |
QAtomicInt |
QAtomicPointer |
QBasicTimer |
QBitArray |
QBuffer |
QByteArray |
QByteArrayMatcher |
QCache |
QChar |
QChildEvent |
QConstString |
QCoreApplication |
QCryptographicHash |
QCustomEvent |
QDataStream |
QDate |
QDateTime |
QDir |
QDirIterator |
QDynamicPropertyChangeEvent |
QEvent |
QEventLoop |
QExplicitlySharedDataPointer |
QFSFileEngine |
QFile |
QFileInfo |
QFileSystemWatcher |
QFlag |
QFlags |
QFuture |
QFutureSynchronizer |
QFutureWatcher |
QGenericArgument |
QGenericReturnArgument |
QHash |
QHashIterator |
QIODevice |
QLatin1Char |
QLatin1String |
QLibrary |
QLibraryInfo |
QLine |
QLineF |
QLinkedList |
QLinkedListIterator |
QList |
QListIterator |
QLocale |
QMap |
QMapIterator |
QMetaClassInfo |
QMetaEnum |
QMetaMethod |
QMetaObject |
QMetaProperty |
QMetaType |
QMimeData |
QModelIndex |
QMultiHash |
QMultiMap |
QMutableHashIterator |
QMutableLinkedListIterator |
QMutableListIterator |
QMutableMapIterator |
QMutableSetIterator |
QMutableVectorIterator |
QMutex |
QMutexLocker |
QObject |
QObjectCleanupHandler |
QPair |
QPersistentModelIndex |
QPluginLoader |
QPoint |
QPointF |
QPointer |
QProcess |
QQueue |
QReadLocker |
QReadWriteLock |
QRect |
QRectF |
QRegExp |
QResource |
QRunnable |
QSemaphore |
QSet |
QSetIterator |
QSettings |
QSharedData |
QSharedDataPointer |
QSharedMemory |
QSignalMapper |
QSize |
QSizeF |
QSocketNotifier |
QStack |
QString |
QStringList |
QStringMatcher |
QStringRef |
QSysInfo |
QSystemLocale |
QSystemSemaphore |
QTemporaryFile |
QTextBoundaryFinder |
QTextCodec |
QTextCodecPlugin |
QTextDecoder |
QTextEncoder |
QTextIStream |
QTextOStream |
QTextStream |
QThread |
QThreadPool |
QThreadStorage |
QTime |
QTimeLine |
QTimer |
QTimerEvent |
QTranslator |
QUrl |
QUuid |
QVarLengthArray |
QVariant |
QVector |
QVectorIterator |
QWaitCondition |
QWriteLocker |
QXmlStreamAttribute |
QXmlStreamAttributes |
QXmlStreamEntityDeclaration |
QXmlStreamEntityResolver |
QXmlStreamNamespaceDeclaration |
QXmlStreamNotationDeclaration |
QXmlStreamReader |
QXmlStreamWriter |
QtConcurrent::UnhandledException |

The QtCore module contains core non-GUI functionality. All other Qt modules rely on this module. To include the definitions of the module's classes, use the following directive:

    #include <QtCore>

The QtCore module is part of all Qt editions.