Nt Core C++ Classes

Core non-graphical classes: objects, signals, events, strings and containers.

Using the Module

target_link_libraries(app PRIVATE Nt::Core)

Nt Core provides the classes every Nt program builds on. Headers keep Qt's names, so #include <QObject> and #include <QtCore/QTimer> both work.

See Signals and Slots for how objects communicate.

Classes

QAbstractAnimation	The QAbstractAnimation class is the base of all animations.
QAbstractEventDispatcher	The QAbstractEventDispatcher class provides an interface to manage Nt's event queue.
QAbstractEventDispatcher::TimerInfo	The TimerInfo struct describes a timer that is registered with an event dispatcher.
QAbstractItemModel	The QAbstractItemModel class provides the abstract interface for item model classes.
QAbstractListModel	The QAbstractListModel class provides an abstract model that can be subclassed to create one-dimensional list models.
QAbstractProxyModel	The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks.
QAbstractTableModel	The QAbstractTableModel class provides an abstract model that can be subclassed to create table models.
QAdoptSharedDataTag	The QAdoptSharedDataTag struct tags a QSharedDataPointer constructor that adopts data.
QAnimationGroup	The QAnimationGroup class is an abstract base class for groups of animations.
QAnyStringView	The QAnyStringView class provides a unified view on Latin-1, UTF-8 or UTF-16 strings.
QApplicationStatic	The QApplicationStatic class holds a global object that lives as long as the application object.
QArgument	The QArgument class is a template helper that holds an argument of type `T`.
QAssocConstIterator	The QAssocConstIterator class provides the Java-style const iterator behind QMapIterator, QMultiMapIterator and QHashIterator.
QAssocMutableIterator	The QAssocMutableIterator class provides the Java-style non-const iterator behind QMutableMapIterator, QMutableMultiMapIterator and QMutableHashIterator.
QAssociativeIterable	The QAssociativeIterable class is an iterable interface for an associative container in a QVariant.
QAssociativeIterable::const_iterator	The const_iterator class is a read-only iterator over a QAssociativeIterable.
QAtomicInteger	The QAtomicInteger class provides platform-independent atomic operations on integers.
QAtomicPointer	The QAtomicPointer class is a template class that provides platform-independent atomic operations on pointers.
QAtomicScopedValueRollback	The QAtomicScopedValueRollback class resets an atomic variable to its previous value on destruction.
QBEInteger	The QBEInteger class provides an integer that is stored in big-endian byte order.
QBasicTimer	The QBasicTimer class provides timer events for objects.
QBitArray	The QBitArray class provides an array of bits.
QBitRef	The QBitRef class is an internal helper for the QBitArray class.
QBuffer	The QBuffer class provides a QIODevice interface for a QByteArray.
QByteArray	The QByteArray class provides an array of bytes.
QByteArray::FromBase64Result	The QByteArray::FromBase64Result class holds the result of QByteArray::fromBase64Encoding().
QByteArrayList	The QByteArrayList class provides a list of byte arrays.
QByteArrayMatcher	The QByteArrayMatcher class holds a sequence of bytes that can be quickly matched in a byte array.
QByteArrayView	The QByteArrayView class provides a view on an array of bytes with a read-only subset of the QByteArray API.
QCache	The QCache class is a template class that provides a cache.
QCalendar	The QCalendar class describes calendar systems.
QCalendar::YearMonthDay	The YearMonthDay class holds the year, month and day of a date in a calendar.
QCborArray	The QCborArray class is used to hold an array of CBOR elements.
QCborArray::ConstIterator	The ConstIterator class is the iterator of QCborArray that reads elements.
QCborArray::Iterator	The Iterator class is the iterator of QCborArray that can change elements.
QCborError	The QCborError class holds the error condition found while parsing or validating a CBOR stream.
QCborMap	The QCborMap class is used to hold an associative container representable in CBOR.
QCborMap::ConstIterator	The ConstIterator class is the iterator of QCborMap that reads pairs.
QCborMap::Iterator	The Iterator class is the iterator of QCborMap that can change values.
QCborParserError	The QCborParserError class is used by QCborValue to report a parsing error.
QCborStreamReader	The QCborStreamReader class is a simple CBOR stream decoder, operating on either a QByteArray or a QIODevice.
QCborStreamReader::StringResult	The StringResult class holds a chunk of a string that QCborStreamReader read.
QCborStreamWriter	The QCborStreamWriter class is a simple CBOR encoder operating on a one-way stream.
QCborValue	The QCborValue class encapsulates a value in CBOR.
QCborValueConstRef	The QCborValueConstRef class is a reference to a value in a QCborArray or QCborMap that cannot be changed.
QCborValueRef	The QCborValueRef class is a reference to a value in a QCborArray or QCborMap.
QChar	The QChar class provides a 16-bit Unicode code unit.
QChildEvent	The QChildEvent class contains event parameters for child object events.
QChronoTimer	The QChronoTimer class provides repetitive and single-shot timers with intervals given as std::chrono durations.
QCollator	The QCollator class compares strings according to a localized collation algorithm.
QCollatorSortKey	The QCollatorSortKey class can be used to speed up string collation.
QCommandLineOption	The QCommandLineOption class defines a possible command-line option.
QCommandLineParser	The QCommandLineParser class provides a means for handling the command line options.
QConcatenateTablesProxyModel	The QConcatenateTablesProxyModel class proxies multiple source models, concatenating their rows.
QContiguousCache	The QContiguousCache class is a template class that provides an efficient cache for a contiguous range of indexes.
QCoreApplication	The QCoreApplication class provides an event loop for console applications.
QCryptographicHash	The QCryptographicHash class provides a way to generate cryptographic hashes.
QDataStream	The QDataStream class provides serialization of binary data to a QIODevice.
QDate	The QDate class provides date functions.
QDateTime	The QDateTime class provides date and time functions.
QDeadlineTimer	The QDeadlineTimer class marks a deadline in the future.
QDebug	The QDebug class provides an output stream for debugging information.
QDebugStateSaver	The QDebugStateSaver class saves and restores the formatting state of a QDebug stream.
QDir	The QDir class provides access to directory structures and their contents.
QDirIterator	The QDirIterator class provides an iterator for directory entries.
QDirListing	The QDirListing class provides an STL-style iterator for directory entries.
QDirListing::DirEntry	The DirEntry class describes one entry of a QDirListing.
QDirListing::const_iterator	The const_iterator class is the input iterator of a QDirListing.
QDirListing::sentinel	The sentinel class marks the end of a QDirListing.
QDynamicPropertyChangeEvent	The QDynamicPropertyChangeEvent class contains event parameters for dynamic property changes.
QEasingCurve	The QEasingCurve class provides easing curves for controlling animation.
QElapsedTimer	The QElapsedTimer class provides a fast way to calculate elapsed times.
QEnableSharedFromThis	The QEnableSharedFromThis class lets an object create shared pointers to itself.
QEvent	The QEvent class is the base class of all event classes.
QEventLoop	The QEventLoop class provides a means of entering and leaving an event loop.
QEventLoopLocker	The QEventLoopLocker class provides a means to quit an event loop when it is no longer needed.
QException	The QException class provides a base class for exceptions that can transferred across threads.
QExplicitlySharedDataPointer	The QExplicitlySharedDataPointer class represents a pointer to an explicitly shared object.
QFile	The QFile class provides an interface for reading from and writing to files.
QFileDevice	The QFileDevice class is the base class of devices that read and write files.
QFileInfo	The QFileInfo class provides information about a file's name, location, type and metadata.
QFileSelector	The QFileSelector class provides a convenient way of selecting file variants.
QFileSystemWatcher	The QFileSystemWatcher class provides an interface for monitoring files and directories for modifications.
QFlag	The QFlag class is a helper data type for QFlags.
QFlags	The QFlags class stores OR combinations of enum values in a type-safe way.
QFuture	The QFuture class represents the result of an asynchronous computation.
QFutureInterface	The QFutureInterface class allows the compution to report its state and results to a QFuture.
QFutureInterfaceBase	The QFutureInterfaceBase class is the non-template base of QFutureInterface.
QFutureSynchronizer	The QFutureSynchronizer class is a convenience class that simplifies QFuture synchronization.
QFutureWatcher	The QFutureWatcher class allows monitoring a QFuture using signals and slots.
QFutureWatcherBase	The QFutureWatcherBase class is the base of QFutureWatcher, and holds its signals and slots.
QGenericArgument	The QGenericArgument class is an internal helper class for marshalling arguments.
QGenericReturnArgument	The QGenericReturnArgument class is an internal helper class for marshalling return values.
QGlobalStatic	The QGlobalStatic class is used to implement a global static object.
QHash	The QHash class is a template class that provides a hash-table-based dictionary.
QHash::TryEmplaceResult	The QHash::TryEmplaceResult struct is the result of QHash::tryEmplace() and its relatives.
QIODevice	The QIODevice class is the abstract base class of all I/O devices.
QIODeviceBase	The QIODeviceBase class provides the open mode flags shared by I/O devices.
QIdentityProxyModel	The QIdentityProxyModel class proxies its source model unmodified.
QItemSelection	The QItemSelection class manages information about selected items in a model.
QItemSelectionModel	The QItemSelectionModel class keeps track of a view's selected items.
QItemSelectionRange	The QItemSelectionRange class manages information about a range of selected items in a model.
QJsonArray	The QJsonArray class encapsulates a JSON array.
QJsonArray::const_iterator	The QJsonArray::const_iterator class is an STL-style const iterator for QJsonArray.
QJsonArray::iterator	The QJsonArray::iterator class is an STL-style non-const iterator for QJsonArray.
QJsonDocument	The QJsonDocument class provides a way to read and write JSON documents.
QJsonObject	The QJsonObject class encapsulates a JSON object.
QJsonObject::const_iterator	The QJsonObject::const_iterator class is an STL-style const iterator for QJsonObject.
QJsonObject::iterator	The QJsonObject::iterator class is an STL-style non-const iterator for QJsonObject.
QJsonParseError	The QJsonParseError struct is used to report errors during JSON parsing.
QJsonValue	The QJsonValue class encapsulates a value in JSON.
QJsonValueConstRef	The QJsonValueConstRef class is a read-only reference to a value inside an array or object.
QJsonValueRef	The QJsonValueRef class is a helper class for QJsonArray and QJsonObject.
QKeyValueIterator	The QKeyValueIterator class is an iterator over the key and value pairs of an associative container.
QKeyValueIterator::pointer
QLEInteger	The QLEInteger class provides an integer that is stored in little-endian byte order.
QLatin1Char	The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.
QLatin1StringMatcher	The QLatin1StringMatcher class searches for a Latin-1 pattern in Latin-1 and UTF-16 text.
QLatin1StringView	The QLatin1StringView class provides a thin wrapper around a US-ASCII/Latin-1 encoded string literal.
QLibrary	The QLibrary class loads shared libraries at runtime.
QLibraryInfo	The QLibraryInfo class reports how the Nt library was built.
QLine	The QLine class provides a two-dimensional vector using integer precision.
QLineF	The QLineF class provides a two-dimensional vector using floating point precision.
QList	The QList class is a template class that provides a dynamic array.
QListIterator	The QListIterator class provides a Java-style const iterator for QList.
QLocale	The QLocale class converts between numbers, dates and their string representations in various languages.
QLockFile	The QLockFile class provides locking between processes using a file.
QLoggingCategory	The QLoggingCategory class represents a category, or 'area', in the logging infrastructure.
QMap	The QMap class is a template class that provides an ordered associative container.
QMargins	The QMargins class defines the four margins of a rectangle.
QMarginsF	The QMarginsF class defines the four margins of a rectangle using floating point precision.
QMessageAuthenticationCode	The QMessageAuthenticationCode class provides a way to generate hash-based message authentication codes.
QMessageLogContext	The QMessageLogContext class carries information about the origin of a log message.
QMessageLogger	The QMessageLogger class generates log messages.
QMetaClassInfo	The QMetaClassInfo class provides additional information about a class.
QMetaEnum	The QMetaEnum class provides meta-data about an enumerator.
QMetaMethod	The QMetaMethod class provides meta-data about a member function.
QMetaObject	The QMetaObject class contains meta-information about Nt objects.
QMetaObject::Connection	The Connection class represents a handle to a signal-slot connection.
QMetaProperty	The QMetaProperty class provides meta-data about a property.
QMetaType	The QMetaType class manages named types in the meta-object system.
QMetaTypeId	The QMetaTypeId class is the trait that `Q_DECLARE_METATYPE()` specializes.
QMimeData	The QMimeData class provides a container for data that records information about its MIME type.
QMimeDatabase	The QMimeDatabase class maintains a database of MIME types.
QMimeType	The QMimeType class describes types of file or data, represented by a MIME type string.
QModelIndex	The QModelIndex class is used to locate data in a data model.
QMultiHash	The QMultiHash class is a template class that provides a hash-table-based multi-valued dictionary.
QMultiMap	The QMultiMap class is a template class that provides an ordered associative container with multiple values per key.
QMutableListIterator	The QMutableListIterator class provides a Java-style non-const iterator for QList.
QMutableSetIterator	The QMutableSetIterator class provides a Java-style non-const iterator for QSet.
QMutex	The QMutex class provides access serialization between threads.
QMutexLocker	The QMutexLocker class is a convenience class that simplifies locking and unlocking mutexes.
QNoDebug	The QNoDebug class is a stream that discards everything written to it.
QObject	The QObject class is the base class of all Nt objects that use signals and slots.
QObjectCleanupHandler	The QObjectCleanupHandler class watches the lifetime of multiple QObjects.
QOperatingSystemVersion	The QOperatingSystemVersion class provides information about the operating system version.
QOverload	The QOverload struct helps to select an overloaded member function.
QParallelAnimationGroup	The QParallelAnimationGroup class provides a parallel group of animations.
QPartialOrdering	The QPartialOrdering class represents the result of a comparison that allows for unordered results.
QPauseAnimation	The QPauseAnimation class provides a pause for QSequentialAnimationGroup.
QPersistentModelIndex	The QPersistentModelIndex class is used to locate data in a data model, and stays valid when the model changes.
QPoint	The QPoint class defines a point in the plane using integer precision.
QPointF	The QPointF class defines a point in the plane using floating point precision.
QPointer	The QPointer class is a template class that provides guarded pointers to QObject.
QProcess	The QProcess class is used to start external programs and to communicate with them.
QProcessEnvironment	The QProcessEnvironment class holds the environment variables that can be passed to a program.
QPromise	The QPromise class provides a way to store computation results to be accessed by QFuture.
QPropertyAnimation	The QPropertyAnimation class animates Qt properties.
QQueue	The QQueue class is a template class that provides a queue.
QRandomGenerator	The QRandomGenerator class allows one to obtain random values from a high-quality Random Number Generator.
QRandomGenerator64	The QRandomGenerator64 class allows one to obtain 64-bit random values from a high-quality Random Number Generator.
QReadLocker	The QReadLocker class is a convenience class that simplifies locking and unlocking read-write locks for read access.
QReadWriteLock	The QReadWriteLock class provides read-write locking.
QRect	The QRect class defines a rectangle in the plane using integer precision.
QRectF	The QRectF class defines a rectangle in the plane using floating point precision.
QRecursiveMutex	The QRecursiveMutex class provides access serialization between threads.
QRegularExpression	The QRegularExpression class provides pattern matching using regular expressions.
QRegularExpressionMatch	The QRegularExpressionMatch class provides the results of matching a QRegularExpression against a string.
QRegularExpressionMatchIterator	The QRegularExpressionMatchIterator class provides an iterator on the results of a global match of a QRegularExpression against a string.
QRegularExpressionMatchIterator::RangeIterator	The RangeIterator class lets a range-based for loop walk over the matches.
QRegularExpressionMatchIterator::Sentinel	The Sentinel class marks the end of the matches in a range-based for loop.
QResource	The QResource class provides an interface for reading directly from resources.
QReturnArgument	The QReturnArgument class is a template helper that holds a return value of type `T`.
QRunnable	The QRunnable class is the base class for all runnable objects.
QSaveFile	The QSaveFile class provides an interface for safely writing to files.
QScopeGuard	The QScopeGuard class calls a function when it goes out of scope.
QScopedArrayPointer	The QScopedArrayPointer class stores a pointer to a dynamically allocated array and deletes it on destruction.
QScopedPointer	The QScopedPointer class stores a pointer to a dynamically allocated object and deletes it on destruction.
QScopedPointerArrayDeleter	The QScopedPointerArrayDeleter struct is the cleanup handler of QScopedArrayPointer.
QScopedPointerDeleter	The QScopedPointerDeleter struct is the default cleanup handler of QScopedPointer.
QScopedValueRollback	The QScopedValueRollback class resets a variable to its previous value on destruction.
QSemaphore	The QSemaphore class provides a general counting semaphore.
QSemaphoreReleaser	The QSemaphoreReleaser class provides exception-safe deferral of a QSemaphore::release() call.
QSequentialAnimationGroup	The QSequentialAnimationGroup class provides a sequential group of animations.
QSequentialIterable	The QSequentialIterable class is an iterable interface for a container in a QVariant.
QSequentialIterable::const_iterator	The const_iterator class is a read-only iterator over a QSequentialIterable.
QSet	The QSet class is a template class that provides a hash-table-based set.
QSetIterator	The QSetIterator class provides a Java-style const iterator for QSet.
QSettings	The QSettings class provides persistent platform-independent application settings.
QSharedData	The QSharedData class is a base class for shared data objects.
QSharedDataPointer	The QSharedDataPointer class represents a pointer to an implicitly shared object.
QSharedMemory	The QSharedMemory class provides access to a shared memory segment.
QSharedPointer	The QSharedPointer class holds a strong reference to a shared pointer.
QSignalBlocker	The QSignalBlocker class exception-safely wraps QObject::blockSignals().
QSignalMapper	The QSignalMapper class bundles signals from identifiable senders.
QSize	The QSize class defines the size of a two-dimensional object using integer point precision.
QSizeF	The QSizeF class defines the size of a two-dimensional object using floating point precision.
QSocketDescriptor	The QSocketDescriptor class wraps a native socket or file descriptor.
QSocketNotifier	The QSocketNotifier class provides a way to watch activity on a file descriptor.
QSortFilterProxyModel	The QSortFilterProxyModel class provides support for sorting and filtering data passed between another model and a view.
QSpan	The QSpan class provides a non-owning view of a contiguous sequence of elements.
QStack	The QStack class is a template class that provides a stack.
QStandardPaths	The QStandardPaths class provides methods for accessing standard paths.
QStaticByteArrayMatcher	The QStaticByteArrayMatcher class is a QByteArrayMatcher whose pattern is known when the program is compiled.
QStorageInfo	The QStorageInfo class provides information about currently mounted storage and drives.
QString	The QString class provides a Unicode character string.
QStringConverter	The QStringConverter class provides a base class for encoding and decoding text.
QStringConverterBase	The QStringConverterBase class provides the flags shared by the string converters.
QStringDecoder	The QStringDecoder class decodes bytes into a QString.
QStringEncoder	The QStringEncoder class encodes QString data into bytes.
QStringList	The QStringList class provides a list of strings.
QStringListModel	The QStringListModel class provides a model that supplies strings to views.
QStringMatcher	The QStringMatcher class holds a sequence of characters that can be quickly matched in a Unicode string.
QStringTokenizer	The QStringTokenizer class splits strings into tokens along given separators.
QStringTokenizer::iterator	The iterator class iterates over the tokens of a QStringTokenizer.
QStringTokenizer::sentinel	The sentinel class marks the end of a QStringTokenizer.
QStringView	The QStringView class provides a unified view on UTF-16 strings with a read-only subset of the QString API.
QSysInfo	The QSysInfo class provides information about the system.
QSystemSemaphore	The QSystemSemaphore class provides a general counting system semaphore.
QTemplatedMetaMethodReturnArgument	The QTemplatedMetaMethodReturnArgument class refers to the variable that receives the result of QMetaObject::invokeMethod().
QTemporaryDir	The QTemporaryDir class creates a unique directory for temporary use.
QTemporaryFile	The QTemporaryFile class is an I/O device that operates on temporary files.
QTextBoundaryFinder	The QTextBoundaryFinder class provides a way of finding Unicode text boundaries in a string.
QTextStream	The QTextStream class provides a convenient interface for reading and writing text.
QTextStreamManipulator	The QTextStreamManipulator class holds a deferred QTextStream setter call.
QThread	The QThread class provides a platform-independent way to manage threads.
QThreadPool	The QThreadPool class manages a collection of threads.
QThreadStorage	The QThreadStorage class provides per-thread data storage.
QTime	The QTime class provides clock time functions.
QTimeLine	The QTimeLine class provides a timeline for controlling animations.
QTimeZone	The QTimeZone class identifies how a time representation relates to UTC.
QTimeZone::OffsetData	The OffsetData class describes the offsets of a zone at an instant.
QTimer	The QTimer class provides repetitive and single-shot timers.
QTimerEvent	The QTimerEvent class contains parameters that describe a timer event.
QTranslator	The QTranslator class provides internationalization support for text output.
QTransposeProxyModel	The QTransposeProxyModel class provides a proxy that swaps the rows and columns of its source model.
QTypeInfo	The QTypeInfo class describes how a type may be stored by a container.
QTypeRevision	The QTypeRevision class contains a QML type revision.
QUnhandledException	The QUnhandledException class represents an unhandled exception in a worker thread.
QUrl	The QUrl class parses, builds and resolves URLs.
QUrlQuery	The QUrlQuery class reads and builds the key-value pairs of a URL query.
QUtf8StringView	The QUtf8StringView class provides a unified view on UTF-8 strings with a read-only subset of the QString API.
QUuid	The QUuid class stores a Universally Unique Identifier (UUID).
QUuid::Id128Bytes	The QUuid::Id128Bytes union holds the 16 bytes of a UUID.
QVarLengthArray	The QVarLengthArray class provides a low-level variable-length array.
QVariant	The QVariant class acts like a union for the most common Nt data types.
QVariantAnimation	The QVariantAnimation class provides a base class for animations.
QVersionNumber	The QVersionNumber class contains a version number with an arbitrary number of segments.
QWaitCondition	The QWaitCondition class provides a condition variable for synchronizing threads.
QWeakPointer	The QWeakPointer class holds a weak reference to a shared pointer.
QWriteLocker	The QWriteLocker class is a convenience class that simplifies locking and unlocking read-write locks for write access.
QXmlStreamAttribute	The QXmlStreamAttribute class represents a single XML attribute.
QXmlStreamAttributes	The QXmlStreamAttributes class represents a vector of QXmlStreamAttribute.
QXmlStreamEntityDeclaration	The QXmlStreamEntityDeclaration class represents a DTD entity declaration.
QXmlStreamEntityResolver	The QXmlStreamEntityResolver class provides an entity resolver for a QXmlStreamReader.
QXmlStreamNamespaceDeclaration	The QXmlStreamNamespaceDeclaration class represents a namespace declaration.
QXmlStreamNotationDeclaration	The QXmlStreamNotationDeclaration class represents a DTD notation declaration.
QXmlStreamReader	The QXmlStreamReader class provides a fast parser for reading well-formed XML.
QXmlStreamWriter	The QXmlStreamWriter class provides an XML writer with a simple streaming API.
Qt	The Qt namespace contains miscellaneous identifiers used throughout Nt.
QtFuture	The QtFuture namespace holds helpers for QFuture, such as QtFuture::Launch.
QtFuture::WhenAnyResult	The WhenAnyResult struct is the result of whenAny() on a range of futures.
qfloat16	The qfloat16 class provides 16-bit floating point support.