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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.

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

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


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