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

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


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.3