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The QtCore module contains core non-GUI functionality. More...
Qt | Miscellaneous identifiers used throughout the Qt library |
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QAbstractEventDispatcher | Interface to manage Qt's event queue |
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QAbstractFileEngine | Abstraction for accessing the filesystem |
QAbstractFileEngineHandler | Way to register custom file engines with your application |
QAbstractFileEngineIterator | Iterator interface for custom file engines |
QAbstractItemModel | The abstract interface for item model classes |
QAbstractListModel | Abstract model that can be subclassed to create one-dimensional list models |
QAbstractTableModel | Abstract model that can be subclassed to create table models |
QBasicTimer | Timer events for objects |
QBitArray | Array of bits |
QBuffer | QIODevice interface for a QByteArray |
QByteArray | Array of bytes |
QByteArrayMatcher | Holds a sequence of bytes that can be quickly matched in a byte array |
QCache | Template class that provides a cache |
QChar | 16-bit Unicode character |
QChildEvent | Event parameters for child object events |
QConstString | Wrapper for constant Unicode string data |
QCoreApplication | Event loop for console Qt applications |
QCryptographicHash | Way to generate cryptographic hashes |
QCustomEvent | Support for custom events |
QDataStream | Serialization of binary data to a QIODevice |
QDate | Date functions |
QDateTime | Date and time functions |
QDir | Access to directory structures and their contents |
QDirIterator | Iterator for directory entrylists |
QDynamicPropertyChangeEvent | Event parameters for dynamic property change events |
QEvent | The base class of all event classes. Event objects contain event parameters |
QEventLoop | Means of entering and leaving an event loop |
QFSFileEngine | Implements Qt's default file engine |
QFile | Interface for reading from and writing to files |
QFileInfo | System-independent file information |
QFileSystemWatcher | Interface for monitoring files and directories for modifications |
QFlag | Helper data type for QFlags |
QFlags | Type-safe way of storing OR-combinations of enum values |
QGenericArgument | Internal helper class for marshalling arguments |
QGenericReturnArgument | Internal helper class for marshalling arguments |
QHash | Template class that provides a hash-table-based dictionary |
QHashIterator | Java-style const iterator for QHash and QMultiHash |
QIODevice | The base interface class of all I/O devices in Qt |
QLatin1Char | 8-bit ASCII/Latin-1 character |
QLatin1String | Thin wrapper around an ASCII/Latin-1 encoded string literal |
QLibrary | Loads shared libraries at runtime |
QLibraryInfo | Information about the Qt library |
QLine | Two-dimensional vector using integer precision |
QLineF | Two-dimensional vector using floating point precision |
QLinkedList | Template class that provides linked lists |
QLinkedListIterator | Java-style const iterator for QLinkedList |
QList | Template class that provides lists |
QListIterator | Java-style const iterator for QList and QQueue |
QLocale | Converts between numbers and their string representations in various languages |
QMap | Template class that provides a skip-list-based dictionary |
QMapIterator | Java-style const iterator for QMap and QMultiMap |
QMetaClassInfo | Additional information about a class |
QMetaEnum | Meta-data about an enumerator |
QMetaMethod | Meta-data about a member function |
QMetaObject | Meta-information about Qt objects |
QMetaProperty | Meta-data about a property |
QMetaType | Manages named types in the meta-object system |
QMimeData | Container for data that records information about its MIME type |
QModelIndex | Used to locate data in a data model |
QMultiHash | Convenience QHash subclass that provides multi-valued hashes |
QMultiMap | Convenience QMap subclass that provides multi-valued maps |
QMutableHashIterator | Java-style non-const iterator for QHash and QMultiHash |
QMutableLinkedListIterator | Java-style non-const iterator for QLinkedList |
QMutableListIterator | Java-style non-const iterator for QList and QQueue |
QMutableMapIterator | Java-style non-const iterator for QMap and QMultiMap |
QMutableSetIterator | Java-style non-const iterator for QSet |
QMutableVectorIterator | Java-style non-const iterator for QVector and QStack |
QMutex | Access serialization between threads |
QMutexLocker | Convenience class that simplifies locking and unlocking mutexes |
QObject | The base class of all Qt objects |
QObjectCleanupHandler | Watches the lifetime of multiple QObjects |
QPair | Template class that stores a pair of items |
QPersistentModelIndex | Used to locate data in a data model |
QPluginLoader | Loads a plugin at run-time |
QPoint | Defines a point in the plane using integer precision |
QPointF | Defines a point in the plane using floating point precision |
QPointer | Template class that provides guarded pointers to QObjects |
QProcess | Used to start external programs and to communicate with them |
QQueue | Generic container that provides a queue |
QReadLocker | Convenience class that simplifies locking and unlocking read-write locks for read access |
QReadWriteLock | Read-write locking |
QRect | Defines a rectangle in the plane using integer precision |
QRectF | Defines a rectangle in the plane using floating point precision |
QRegExp | Pattern matching using regular expressions |
QResource | Interface for reading directly from resources |
QSemaphore | General counting semaphore |
QSet | Template class that provides a hash-table-based set |
QSetIterator | Java-style const iterator for QSet |
QSettings | Persistent platform-independent application settings |
QSharedData | Base class for shared data objects |
QSharedDataPointer | Pointer to a shared data object |
QSignalMapper | Bundles signals from identifiable senders |
QSize | Defines the size of a two-dimensional object using integer point precision |
QSizeF | Defines the size of a two-dimensional object using floating point precision |
QSocketNotifier | Support for monitoring activity on a file descriptor |
QStack | Template class that provides a stack |
QString | Unicode character string |
QStringList | List of strings |
QStringMatcher | Holds a sequence of characters that can be quickly matched in a Unicode string |
QStringRef | Thin wrapper around QString substrings |
QSysInfo | Information about the system |
QSystemLocale | Can be used to finetune the system locale of the user |
QTemporaryFile | I/O device that operates on temporary files |
QTextCodec | Conversions between text encodings |
QTextCodecPlugin | Abstract base for custom QTextCodec plugins |
QTextDecoder | State-based decoder |
QTextEncoder | State-based encoder |
QTextIStream | Convenience class for input streams |
QTextOStream | Convenience class for output streams |
QTextStream | Convenient interface for reading and writing text |
QThread | Platform-independent threads |
QThreadStorage | Per-thread data storage |
QTime | Clock time functions |
QTimeLine | Timeline for controlling animations |
QTimer | Repetitive and single-shot timers |
QTimerEvent | Parameters that describe a timer event |
QTranslator | Internationalization support for text output |
QUrl | Convenient interface for working with URLs |
QUuid | Stores a Universally Unique Identifier (UUID) |
QVarLengthArray | Low-level variable-length array |
QVariant | Acts like a union for the most common Qt data types |
QVector | Template class that provides a dynamic array |
QVectorIterator | Java-style const iterator for QVector and QStack |
QWaitCondition | Condition variable for synchronizing threads |
QWriteLocker | Convenience class that simplifies locking and unlocking read-write locks for write access |
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.
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