Qt Core C++ Classes

• QAtomicInt: The QAtomicInt class provides platform-independent atomic operations on int.

• QAtomicPointer: The QAtomicPointer class is a template class that provides platform-independent atomic operations on pointers.

• QBEInteger: The QBEInteger class provides platform-independent big-endian integers.

• QByteArrayList: The QByteArrayList class provides a list of byte arrays.

• QCborParserError: The QCborParserError is used by QCborValue to report a parsing error.

• QContiguousCache: The QContiguousCache class is a template class that provides a contiguous cache.

• QElapsedTimer: The QElapsedTimer class provides a fast way to calculate elapsed times.

• QEnableSharedFromThis: A base class that allows obtaining a QSharedPointer for an object already managed by a shared pointer.

• QExplicitlySharedDataPointer: The QExplicitlySharedDataPointer class represents a pointer to an explicitly shared object.

• QFlag: The QFlag class is a helper data type for QFlags.

• QFuture: The QFuture class represents the result of an asynchronous computation.

• QFutureSynchronizer: The QFutureSynchronizer class is a convenience class that simplifies QFuture synchronization.

• QFutureWatcher: The QFutureWatcher class allows monitoring a QFuture using 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 arguments.

• 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.

• QHashIterator: The QHashIterator class provides a Java-style const iterator for QHash and QMultiHash.

• QKeyValueIterator: Iterator over the key/value pairs of an associative container.

• QLEInteger: The QLEInteger class provides platform-independent little-endian integers.

• QLatin1Char: The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.

• QLatin1String: The QLatin1String class provides a thin wrapper around an US-ASCII/Latin-1 encoded string literal.

• QLinkedList: The QLinkedList class is a template class that provides linked lists.

• QList: The QList class is a template class that provides lists.

• QMap: The QMap class is a template class that provides a red-black-tree-based dictionary.

• QMap::key_iterator: The QMap::key_iterator class provides an STL-style const iterator for QMap and QMultiMap keys.

• QMarginsF: The QMarginsF class defines the four margins of a rectangle.

• QMessageLogContext: The QMessageLogContext class provides additional information about a log message.

• QMetaObject: The QMetaObject class contains meta-information about Qt objects.

• QMetaObject::Connection:

• QMetaType: The QMetaType class manages named types in the meta-object system.

• QMutableHashIterator: The QMutableHashIterator class provides a Java-style non-const iterator for QHash and QMultiHash.

• QMutableMapIterator: The QMutableMapIterator class provides a Java-style non-const iterator for QMap and QMultiMap.

• 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.

• QPair: The QPair class is a template class that stores a pair of items.

• QPointer: The QPointer class is a template class that provides guarded pointers to QObject.

• QQueue: The QQueue class is a generic container 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, seed-less Random Number Generator.

• 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.

• QScopeGuard: Provides a scope guard for calling a function at the end of a scope.

• QScopedPointer: The QScopedPointer class stores a pointer to a dynamically allocated object, and deletes it upon destruction.

• QScopedValueRollback: The QScopedValueRollback class resets a variable to its previous value on destruction.

• QSemaphoreReleaser: The QSemaphoreReleaser class provides exception-safe deferral of a QSemaphore::release() call.

• QSet: The QSet class is a template class that provides a hash-table-based set.

• QSet::const_iterator: The QSet::const_iterator class provides an STL-style const iterator for QSet.

• QSet::iterator: The QSet::iterator class provides an STL-style non-const iterator for QSet.

• QSetIterator: The QSetIterator class provides a Java-style const iterator for QSet.

• QSharedDataPointer: The QSharedDataPointer class represents a pointer to an implicitly shared object.

• QSharedPointer: The QSharedPointer class holds a strong reference to a shared pointer.

• QSignalBlocker: Exception-safe wrapper around QObject::blockSignals().

• QStack: The QStack class is a template class that provides a stack.

• QStaticByteArrayMatcher: The QStaticByteArrayMatcher class is a compile-time version of QByteArrayMatcher.

• QStringList: The QStringList class provides a list of strings.

• QStringView: The QStringView class provides a unified view on UTF-16 strings with a read-only subset of the QString API.

• QTextCodec: The QTextCodec class provides conversions between text encodings.

• QTextDecoder: The QTextDecoder class provides a state-based decoder.

• QTextEncoder: The QTextEncoder class provides a state-based encoder.

• QThread: The QThread class provides a platform-independent way to manage threads.

• QThreadStorage: The QThreadStorage class provides per-thread data storage.

• QVarLengthArray: The QVarLengthArray class provides a low-level variable-length array.

• QVector: The QVector class is a template class that provides a dynamic array.

• QVersionNumber: The QVersionNumber class contains a version number with an arbitrary number of segments.

• QWeakPointer: The QWeakPointer class holds a weak reference to a shared pointer.

All other Qt modules rely on this module.