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The QtCore module contains core non-GUI functionality. More...
| Qt | Contains miscellaneous identifiers used throughout the Qt library | 
|---|---|
| QtConcurrent | High-level APIs that make it possible to write multi-threaded programs without using low-level threading primitives | 
| QtConcurrent::Exception | Base class for exceptions that can transferred across threads | 
|---|---|
| QAbstractAnimation | The base of all animations | 
| QAbstractEventDispatcher | Interface to manage Qt's event queue | 
| 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 | 
| QAbstractState | The base class of states of a QStateMachine | 
| QAbstractTableModel | Abstract model that can be subclassed to create table models | 
| QAbstractTransition | The base class of transitions between QAbstractState objects | 
| QAnimationGroup | Abstract base class for groups of animations | 
| QAtomicInt | Platform-independent atomic operations on integers | 
| QAtomicPointer | Template class that provides platform-independent atomic operations on pointers | 
| 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 | Contains event parameters for child object events | 
| QConstString | Wrapper for constant Unicode string data | 
| QContiguousCache | Template class that provides a contiguous cache | 
| 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 | 
| QDebug | Output stream for debugging information | 
| QDir | Access to directory structures and their contents | 
| QDirIterator | Iterator for directory entrylists | 
| QDynamicPropertyChangeEvent | Contains event parameters for dynamic property change events | 
| QEasingCurve | Easing curves for controlling animation | 
| QEvent | The base class of all event classes. Event objects contain event parameters | 
| QEventLoop | Means of entering and leaving an event loop | 
| QEventTransition | QObject-specific transition for Qt events | 
| QExplicitlySharedDataPointer | Represents a pointer to an explicitly shared object | 
| 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 | 
| QFinalState | Final state | 
| QFlag | Helper data type for QFlags | 
| QFlags | Type-safe way of storing OR-combinations of enum values | 
| QFuture | Represents the result of an asynchronous computation | 
| QFutureIterator | Java-style const iterator for QFuture | 
| QFutureSynchronizer | Convenience class that simplifies QFuture synchronization | 
| QFutureWatcher | Allows monitoring a QFuture using signals and slots | 
| 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 | 
| QHistoryState | Means of returning to a previously active substate | 
| 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 | 
| QMargins | Defines the four margins of a rectangle | 
| QMetaClassInfo | Additional information about a class | 
| QMetaEnum | Meta-data about an enumerator | 
| QMetaMethod | Meta-data about a member function | 
| QMetaObject | Contains 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 | 
| QParallelAnimationGroup | Parallel group of animations | 
| QPauseAnimation | Pause for QSequentialAnimationGroup | 
| 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 | 
| QProcessEnvironment | Holds the environment variables that can be passed to a program | 
| QPropertyAnimation | Animates Qt properties | 
| 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 | 
| QRunnable | The base class for all runnable objects | 
| QScopedArrayPointer | Stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction | 
| QScopedPointer | Stores a pointer to a dynamically allocated object, and deletes it upon destruction | 
| QSemaphore | General counting semaphore | 
| QSequentialAnimationGroup | Sequential group of animations | 
| 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 | Represents a pointer to an implicitly shared object | 
| QSharedMemory | Access to a shared memory segment | 
| QSharedPointer | Holds a strong reference to a shared pointer | 
| QSignalMapper | Bundles signals from identifiable senders | 
| QSignalTransition | Transition based on a Qt signal | 
| 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 | 
| QState | General-purpose state for QStateMachine | 
| QStateMachine | Hierarchical finite state machine | 
| 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 | 
| QSystemSemaphore | General counting system semaphore | 
| QTemporaryFile | I/O device that operates on temporary files | 
| QTextBoundaryFinder | Way of finding Unicode text boundaries in a string | 
| 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 | 
| QThreadPool | Manages a collection of QThreads | 
| QThreadStorage | Per-thread data storage | 
| QTime | Clock time functions | 
| QTimeLine | Timeline for controlling animations | 
| QTimer | Repetitive and single-shot timers | 
| QTimerEvent | Contains 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 | 
| QVariantAnimation | Abstract base class for animations | 
| QVector | Template class that provides a dynamic array | 
| QVectorIterator | Java-style const iterator for QVector and QStack | 
| QWaitCondition | Condition variable for synchronizing threads | 
| QWeakPointer | Holds a weak reference to a shared pointer | 
| QWriteLocker | Convenience class that simplifies locking and unlocking read-write locks for write access | 
| QXmlStreamAttribute | Represents a single XML attribute | 
| QXmlStreamAttributes | Represents a vector of QXmlStreamAttribute | 
| QXmlStreamEntityDeclaration | Represents a DTD entity declaration | 
| QXmlStreamEntityResolver | Entity resolver for a QXmlStreamReader | 
| QXmlStreamNamespaceDeclaration | Represents a namespace declaration | 
| QXmlStreamNotationDeclaration | Represents a DTD notation declaration | 
| QXmlStreamReader | Fast parser for reading well-formed XML via a simple streaming API | 
| QXmlStreamWriter | XML writer with a simple streaming API | 
| QtConcurrent::UnhandledException | Represents an unhandled exception in a worker thread | 
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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| Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies) | Trademarks | Qt 4.6.3 |