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Qt's Classes

This is a list of all Qt classes excluding the Qt 3 compatibility classes. For a shorter list that only includes the most frequently used classes, see Qt's Main Classes.

A  QAbstractButton QGraphicsLineItem QPictureFormatPlugin QStyleOptionTitleBar
QAbstractEventDispatcher QGraphicsPathItem QPictureIO QStyleOptionToolBar
QAbstractFileEngine QGraphicsPixmapItem QPixmap QStyleOptionToolBox
QAbstractFileEngineHandler QGraphicsPolygonItem QPixmapCache QStyleOptionToolBoxV2
QAbstractFileEngineIterator QGraphicsProxyWidget QPlainTextDocumentLayout QStyleOptionToolButton
QAbstractGraphicsShapeItem QGraphicsRectItem QPlainTextEdit QStyleOptionViewItem
QAbstractItemDelegate QGraphicsScene QPlastiqueStyle QStyleOptionViewItemV2
QAbstractItemModel QGraphicsSceneContextMenuEvent QPluginLoader QStyleOptionViewItemV3
QAbstractItemView QGraphicsSceneDragDropEvent QPoint QStyleOptionViewItemV4
QAbstractListModel QGraphicsSceneEvent QPointer QStylePainter
QAbstractNetworkCache QGraphicsSceneHelpEvent QPointF QStylePlugin
QAbstractPrintDialog QGraphicsSceneHoverEvent QPolygon QSvgGenerator
QAbstractProxyModel QGraphicsSceneMouseEvent QPolygonF QSvgRenderer
QAbstractScrollArea QGraphicsSceneMoveEvent QPrintDialog QSvgWidget
QAbstractSlider QGraphicsSceneResizeEvent QPrintEngine QSyntaxHighlighter
QAbstractSocket QGraphicsSceneWheelEvent QPrinter QSysInfo
QAbstractSpinBox QGraphicsSimpleTextItem QPrinterInfo QSystemLocale
QAbstractTableModel QGraphicsSvgItem QPrintPreviewDialog QSystemSemaphore
QAbstractTextDocumentLayout QGraphicsTextItem QPrintPreviewWidget QSystemTrayIcon
QAccessible QGraphicsView QProcess T  QTabBar
QAccessibleBridge QGraphicsWidget QProgressBar QTabletEvent
QAccessibleBridgePlugin QGridLayout QProgressDialog QTableView
QAccessibleEvent QGroupBox QProxyModel QTableWidget
QAccessibleInterface QGtkStyle QPushButton QTableWidgetItem
QAccessibleObject H  QHash Q  QQueue QTableWidgetSelectionRange
QAccessiblePlugin QHashIterator R  QRadialGradient QTabWidget
QAccessibleWidget QHBoxLayout QRadioButton QTcpServer
QAction QHeaderView QRasterPaintEngine QTcpSocket
QActionEvent QHelpEvent QReadLocker QTemporaryFile
QActionGroup QHideEvent QReadWriteLock QTestEventList
QApplication QHostAddress QRect QTextBlock
QAtomicInt QHostInfo QRectF QTextBlockFormat
QAtomicPointer QHoverEvent QRegExp QTextBlockGroup
AudioOutput (Phonon) QHttp QRegExpValidator QTextBlockUserData
QAuthenticator QHttpHeader QRegion QTextBoundaryFinder
B  QBasicTimer QHttpRequestHeader QResizeEvent QTextBrowser
QBitArray QHttpResponseHeader QResource QTextCharFormat
QBitmap I  QIcon QRubberBand QTextCodec
QBoxLayout QIconDragEvent QRunnable QTextCodecPlugin
QBrush QIconEngine S  QS60Style QTextCursor
QBuffer QIconEnginePlugin QScopedPointer QTextDecoder
QButtonGroup QIconEnginePluginV2 QScriptable QTextDocument
QByteArray QIconEngineV2 QScriptClass QTextDocumentFragment
QByteArrayMatcher QImage QScriptClassPropertyIterator QTextDocumentWriter
C  QCache QImageIOHandler QScriptContext QTextEdit
QCalendarWidget QImageIOPlugin QScriptContextInfo QTextEncoder
QCDEStyle QImageReader QScriptEngine QTextFormat
QChar QImageWriter QScriptEngineAgent QTextFragment
QCheckBox QInputContext QScriptEngineDebugger QTextFrame
QChildEvent QInputContextFactory QScriptExtensionPlugin QTextFrameFormat
QCleanlooksStyle QInputContextPlugin QScriptString QTextImageFormat
QClipboard QInputDialog QScriptSyntaxCheckResult QTextInlineObject
QCloseEvent QInputEvent QScriptValue QTextItem
QColor QInputMethodEvent QScriptValueIterator QTextLayout
QColorDialog QIntValidator QScrollArea QTextLength
QColormap QIODevice QScrollBar QTextLine
QColumnView QItemDelegate SeekSlider (Phonon) QTextList
QComboBox QItemEditorCreator QSemaphore QTextListFormat
QCommandLinkButton QItemEditorCreatorBase QSessionManager QTextObject
QCommonStyle QItemEditorFactory QSet QTextObjectInterface
QCompleter QItemSelection QSetIterator QTextOption
QConicalGradient QItemSelectionModel QSettings QTextStream
QContextMenuEvent QItemSelectionRange QSharedData QTextTable
QCoreApplication K  QKeyEvent QSharedDataPointer QTextTableCell
QCryptographicHash QKeySequence QSharedMemory QTextTableCellFormat
QCursor L  QLabel QSharedPointer QTextTableFormat
QCustomRasterPaintDevice QLatin1Char QShortcut QThread
D  QDataStream QLatin1String QShortcutEvent QThreadPool
QDataWidgetMapper QLayout QShowEvent QThreadStorage
QDate QLayoutItem QSignalMapper QTime
QDateEdit QLCDNumber QSignalSpy QTimeEdit
QDateTime QLibrary QSize QTimeLine
QDateTimeEdit QLibraryInfo QSizeF QTimer
QDebug QLine QSizeGrip QTimerEvent
QDesktopServices QLinearGradient QSizePolicy QToolBar
QDesktopWidget QLineEdit QSlider QToolBox
QDial QLineF QSocketNotifier QToolButton
QDialog QLinkedList QSortFilterProxyModel QToolTip
QDialogButtonBox QLinkedListIterator QSound QTransform
QDir QList QSpacerItem QTranslator
QDirIterator QListIterator QSpinBox QTreeView
QDirModel QListView QSplashScreen QTreeWidget
QDockWidget QListWidget QSplitter QTreeWidgetItem
QDomAttr QListWidgetItem QSplitterHandle QTreeWidgetItemIterator
QDomCDATASection QLocale QSqlDatabase U  QUdpSocket
QDomCharacterData QLocalServer QSqlDriver QUndoCommand
QDomComment QLocalSocket QSqlDriverCreator QUndoGroup
QDomDocument M  QMainWindow QSqlDriverCreatorBase QUndoStack
QDomDocumentFragment QMap QSqlDriverPlugin QUndoView
QDomDocumentType QMapIterator QSqlError UnhandledException (QtConcurrent)
QDomElement QMatrix QSqlField QUrl
QDomEntity QMdiArea QSqlIndex QUrlInfo
QDomEntityReference QMdiSubWindow QSqlQuery QUuid
QDomImplementation MediaController (Phonon) QSqlQueryModel V  QValidator
QDomNamedNodeMap MediaNode (Phonon) QSqlRecord QVariant
QDomNode MediaObject (Phonon) QSqlRelation QVarLengthArray
QDomNodeList MediaSource (Phonon) QSqlRelationalDelegate QVBoxLayout
QDomNotation QMenu QSqlRelationalTableModel QVector
QDomProcessingInstruction QMenuBar QSqlResult QVectorIterator
QDomText QMessageBox QSqlTableModel VideoPlayer (Phonon)
QDoubleSpinBox QMetaClassInfo QSslCertificate VideoWidget (Phonon)
QDoubleValidator QMetaEnum QSslCipher VolumeSlider (Phonon)
QDrag QMetaMethod QSslConfiguration W  QWaitCondition
QDragEnterEvent QMetaObject QSslError QWeakPointer
QDragLeaveEvent QMetaProperty QSslKey QWebDatabase
QDragMoveEvent QMetaType QSslSocket QWebElement
QDropEvent QMimeData QStack QWebFrame
QDynamicPropertyChangeEvent QMimeSource QStackedLayout QWebHistory
E  Effect (Phonon) QModelIndex QStackedWidget QWebHistoryInterface
EffectParameter (Phonon) QMotifStyle QStandardItem QWebHistoryItem
EffectWidget (Phonon) QMouseEvent QStandardItemEditorCreator QWebHitTestResult
QErrorMessage QMoveEvent QStandardItemModel QWebPage
QEvent QMovie QStatusBar QWebPluginFactory
QEventLoop QMultiHash QStatusTipEvent QWebSecurityOrigin
Exception (QtConcurrent) QMultiMap QString QWebSettings
QExplicitlySharedDataPointer QMutableHashIterator QStringList QWebView
F  QFile QMutableLinkedListIterator QStringListModel QWhatsThis
QFileDialog QMutableListIterator QStringMatcher QWhatsThisClickedEvent
QFileIconProvider QMutableMapIterator QStringRef QWheelEvent
QFileInfo QMutableSetIterator QStyle QWidget
QFileOpenEvent QMutableVectorIterator QStyledItemDelegate QWidgetAction
QFileSystemModel QMutex QStyleFactory QWidgetItem
QFileSystemWatcher QMutexLocker QStyleHintReturn QWindowsMime
QFlag N  QNetworkAccessManager QStyleHintReturnMask QWindowsStyle
QFlags QNetworkAddressEntry QStyleHintReturnVariant QWindowStateChangeEvent
QFocusEvent QNetworkCacheMetaData QStyleOption QWindowsVistaStyle
QFocusFrame QNetworkCookie QStyleOptionButton QWindowsXPStyle
QFont QNetworkCookieJar QStyleOptionComboBox QWizard
QFontComboBox QNetworkDiskCache QStyleOptionComplex QWizardPage
QFontDatabase QNetworkInterface QStyleOptionDockWidget QWorkspace
QFontDialog QNetworkProxy QStyleOptionFocusRect QWriteLocker
QFontInfo QNetworkProxyFactory QStyleOptionFrame X  QXmlAttributes
QFontMetrics QNetworkProxyQuery QStyleOptionFrameV2 QXmlContentHandler
QFontMetricsF QNetworkReply QStyleOptionFrameV3 QXmlDeclHandler
QFormLayout QNetworkRequest QStyleOptionGraphicsItem QXmlDefaultHandler
QFrame Notifier (Phonon::BackendCapabilities) QStyleOptionGroupBox QXmlDTDHandler
QFSFileEngine O  QObject QStyleOptionHeader QXmlEntityResolver
QFtp QObjectCleanupHandler QStyleOptionMenuItem QXmlErrorHandler
QFuture ObjectDescription (Phonon) QStyleOptionProgressBar QXmlInputSource
QFutureIterator P  QPageSetupDialog QStyleOptionProgressBarV2 QXmlLexicalHandler
QFutureSynchronizer QPaintDevice QStyleOptionQ3DockWindow QXmlLocator
QFutureWatcher QPaintEngine QStyleOptionQ3ListView QXmlNamespaceSupport
G  QGenericArgument QPaintEngineState QStyleOptionQ3ListViewItem QXmlParseException
QGenericReturnArgument QPainter QStyleOptionRubberBand QXmlReader
QGradient QPainterPath QStyleOptionSizeGrip QXmlSimpleReader
QGraphicsEllipseItem QPainterPathStroker QStyleOptionSlider QXmlStreamAttribute
QGraphicsGridLayout QPaintEvent QStyleOptionSpinBox QXmlStreamAttributes
QGraphicsItem QPair QStyleOptionTab QXmlStreamEntityDeclaration
QGraphicsItemAnimation QPalette QStyleOptionTabBarBase QXmlStreamEntityResolver
QGraphicsItemGroup Path (Phonon) QStyleOptionTabBarBaseV2 QXmlStreamNamespaceDeclaration
QGraphicsLayout QPen QStyleOptionTabV2 QXmlStreamNotationDeclaration
QGraphicsLayoutItem QPersistentModelIndex QStyleOptionTabV3 QXmlStreamReader
QGraphicsLinearLayout QPicture QStyleOptionTabWidgetFrame QXmlStreamWriter

See also Qt 3 Compatibility Classes and Qt's Modules.

Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.2-tower