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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 QFlag QMutexLocker QStyleOptionRubberBand
QAbstractEventDispatcher QFlags QNetworkAccessManager QStyleOptionSizeGrip
QAbstractExtensionFactory QFocusEvent QNetworkAddressEntry QStyleOptionSlider
QAbstractExtensionManager QFocusFrame QNetworkCacheMetaData QStyleOptionSpinBox
QAbstractFileEngine QFont QNetworkCookie QStyleOptionTab
QAbstractFileEngineHandler QFontComboBox QNetworkCookieJar QStyleOptionTabBarBase
QAbstractFileEngineIterator QFontDatabase QNetworkDiskCache QStyleOptionTabBarBaseV2
QAbstractFormBuilder QFontDialog QNetworkInterface QStyleOptionTabV2
QAbstractGraphicsShapeItem QFontInfo QNetworkProxy QStyleOptionTabV3
QAbstractItemDelegate QFontMetrics QNetworkProxyFactory QStyleOptionTabWidgetFrame
QAbstractItemModel QFontMetricsF QNetworkProxyQuery QStyleOptionTitleBar
QAbstractItemView QFormBuilder QNetworkReply QStyleOptionToolBar
QAbstractListModel QFormLayout QNetworkRequest QStyleOptionToolBox
QAbstractMessageHandler QFrame Notifier (Phonon::BackendCapabilities) QStyleOptionToolBoxV2
QAbstractNetworkCache QFSFileEngine QObject QStyleOptionToolButton
QAbstractPrintDialog QFtp QObjectCleanupHandler QStyleOptionViewItem
QAbstractProxyModel QFuture ObjectDescription (Phonon) QStyleOptionViewItemV2
QAbstractScrollArea QFutureIterator QPageSetupDialog QStyleOptionViewItemV3
QAbstractSlider QFutureSynchronizer QPaintDevice QStyleOptionViewItemV4
QAbstractSocket QFutureWatcher QPaintEngine QStylePainter
QAbstractSpinBox QGenericArgument QPaintEngineState QStylePlugin
QAbstractTableModel QGenericReturnArgument QPainter QSvgGenerator
QAbstractTextDocumentLayout QGLColormap QPainterPath QSvgRenderer
QAbstractUriResolver QGLContext QPainterPathStroker QSvgWidget
QAbstractXmlNodeModel QGLFormat QPaintEvent QSyntaxHighlighter
QAbstractXmlReceiver QGLFramebufferObject QPair QSysInfo
QAccessible QGLPixelBuffer QPalette QSystemLocale
QAccessibleBridge QGLWidget Path (Phonon) QSystemSemaphore
QAccessibleBridgePlugin QGradient QPen QSystemTrayIcon
QAccessibleEvent QGraphicsEllipseItem QPersistentModelIndex QTabBar
QAccessibleInterface QGraphicsGridLayout QPicture QTabletEvent
QAccessibleObject QGraphicsItem QPictureFormatPlugin QTableView
QAccessiblePlugin QGraphicsItemAnimation QPictureIO QTableWidget
QAccessibleWidget QGraphicsItemGroup QPixmap QTableWidgetItem
QAction QGraphicsLayout QPixmapCache QTableWidgetSelectionRange
QActionEvent QGraphicsLayoutItem QPlainTextDocumentLayout QTabWidget
QActionGroup QGraphicsLinearLayout QPlainTextEdit QTcpServer
QApplication QGraphicsLineItem QPlastiqueStyle QTcpSocket
QAssistantClient QGraphicsPathItem QPluginLoader QTemporaryFile
QAtomicInt QGraphicsPixmapItem QPoint QTestEventList
QAtomicPointer QGraphicsPolygonItem QPointer QTextBlock
AudioOutput (Phonon) QGraphicsProxyWidget QPointF QTextBlockFormat
QAuthenticator QGraphicsRectItem QPolygon QTextBlockGroup
QAxAggregated QGraphicsScene QPolygonF QTextBlockUserData
QAxBase QGraphicsSceneContextMenuEvent QPrintDialog QTextBoundaryFinder
QAxBindable QGraphicsSceneDragDropEvent QPrintEngine QTextBrowser
QAxFactory QGraphicsSceneEvent QPrinter QTextCharFormat
QAxObject QGraphicsSceneHelpEvent QPrinterInfo QTextCodec
QAxScript QGraphicsSceneHoverEvent QPrintPreviewDialog QTextCodecPlugin
QAxScriptEngine QGraphicsSceneMouseEvent QPrintPreviewWidget QTextCursor
QAxScriptManager QGraphicsSceneMoveEvent QProcess QTextDecoder
QAxWidget QGraphicsSceneResizeEvent QProgressBar QTextDocument
QBasicTimer QGraphicsSceneWheelEvent QProgressDialog QTextDocumentFragment
QBitArray QGraphicsSimpleTextItem QProxyModel QTextDocumentWriter
QBitmap QGraphicsSvgItem QPushButton QTextEdit
QBoxLayout QGraphicsTextItem QQueue QTextEncoder
QBrush QGraphicsView QRadialGradient QTextFormat
QBuffer QGraphicsWidget QRadioButton QTextFragment
QButtonGroup QGridLayout QRasterPaintEngine QTextFrame
QByteArray QGroupBox QReadLocker QTextFrameFormat
QByteArrayMatcher QGtkStyle QReadWriteLock QTextImageFormat
QCache QHash QRect QTextInlineObject
QCalendarWidget QHashIterator QRectF QTextItem
QCDEStyle QHBoxLayout QRegExp QTextLayout
QChar QHeaderView QRegExpValidator QTextLength
QCheckBox QHelpContentItem QRegion QTextLine
QChildEvent QHelpContentModel QResizeEvent QTextList
QCleanlooksStyle QHelpContentWidget QResource QTextListFormat
QClipboard QHelpEngine QRubberBand QTextObject
QCloseEvent QHelpEngineCore QRunnable QTextObjectInterface
QColor QHelpEvent QScriptable QTextOption
QColorDialog QHelpIndexModel QScriptClass QTextStream
QColormap QHelpIndexWidget QScriptClassPropertyIterator QTextTable
QColumnView QHelpSearchEngine QScriptContext QTextTableCell
QComboBox QHelpSearchQuery QScriptContextInfo QTextTableCellFormat
QCommandLinkButton QHelpSearchQueryWidget QScriptEngine QTextTableFormat
QCommonStyle QHelpSearchResultWidget QScriptEngineAgent QThread
QCompleter QHideEvent QScriptEngineDebugger QThreadPool
QConicalGradient QHostAddress QScriptExtensionPlugin QThreadStorage
QContextMenuEvent QHostInfo QScriptString QTime
QCoreApplication QHoverEvent QScriptSyntaxCheckResult QTimeEdit
QCryptographicHash QHttp QScriptValue QTimeLine
QCursor QHttpHeader QScriptValueIterator QTimer
QCustomRasterPaintDevice QHttpRequestHeader QScrollArea QTimerEvent
QDataStream QHttpResponseHeader QScrollBar QToolBar
QDataWidgetMapper QIcon SeekSlider (Phonon) QToolBox
QDate QIconDragEvent QSemaphore QToolButton
QDateEdit QIconEngine QSessionManager QToolTip
QDateTime QIconEnginePlugin QSet QTransform
QDateTimeEdit QIconEnginePluginV2 QSetIterator QTranslator
QDBusAbstractAdaptor QIconEngineV2 QSettings QTreeView
QDBusAbstractInterface QImage QSharedData QTreeWidget
QDBusArgument QImageIOHandler QSharedDataPointer QTreeWidgetItem
QDBusConnection QImageIOPlugin QSharedMemory QTreeWidgetItemIterator
QDBusConnectionInterface QImageReader QSharedPointer QUdpSocket
QDBusContext QImageWriter QShortcut QUiLoader
QDBusError QInputContext QShortcutEvent QUndoCommand
QDBusInterface QInputContextFactory QShowEvent QUndoGroup
QDBusMessage QInputContextPlugin QSignalMapper QUndoStack
QDBusObjectPath QInputDialog QSignalSpy QUndoView
QDBusPendingCall QInputEvent QSimpleXmlNodeModel UnhandledException (QtConcurrent)
QDBusPendingCallWatcher QInputMethodEvent QSize QUrl
QDBusPendingReply QIntValidator QSizeF QUrlInfo
QDBusReply QIODevice QSizeGrip QUuid
QDBusServer QItemDelegate QSizePolicy QValidator
QDBusSignature QItemEditorCreator QSlider QVariant
QDBusVariant QItemEditorCreatorBase QSocketNotifier QVarLengthArray
QDebug QItemEditorFactory QSortFilterProxyModel QVBoxLayout
QDesignerActionEditorInterface QItemSelection QSound QVector
QDesignerContainerExtension QItemSelectionModel QSourceLocation QVectorIterator
QDesignerCustomWidgetCollectionInterface QItemSelectionRange QSpacerItem VideoPlayer (Phonon)
QDesignerCustomWidgetInterface QKeyEvent QSpinBox VideoWidget (Phonon)
QDesignerDynamicPropertySheetExtension QKeySequence QSplashScreen VolumeSlider (Phonon)
QDesignerFormEditorInterface QLabel QSplitter QWaitCondition
QDesignerFormWindowCursorInterface QLatin1Char QSplitterHandle QWeakPointer
QDesignerFormWindowInterface QLatin1String QSqlDatabase QWebDatabase
QDesignerFormWindowManagerInterface QLayout QSqlDriver QWebFrame
QDesignerMemberSheetExtension QLayoutItem QSqlDriverCreator QWebHistory
QDesignerObjectInspectorInterface QLCDNumber QSqlDriverCreatorBase QWebHistoryInterface
QDesignerPropertyEditorInterface QLibrary QSqlDriverPlugin QWebHistoryItem
QDesignerPropertySheetExtension QLibraryInfo QSqlError QWebHitTestResult
QDesignerTaskMenuExtension QLine QSqlField QWebPage
QDesignerWidgetBoxInterface QLinearGradient QSqlIndex QWebPluginFactory
QDesktopServices QLineEdit QSqlQuery QWebSecurityOrigin
QDesktopWidget QLineF QSqlQueryModel QWebSettings
QDial QLinkedList QSqlRecord QWebView
QDialog QLinkedListIterator QSqlRelation QWhatsThis
QDialogButtonBox QList QSqlRelationalDelegate QWhatsThisClickedEvent
QDir QListIterator QSqlRelationalTableModel QWheelEvent
QDirIterator QListView QSqlResult QWidget
QDirModel QListWidget QSqlTableModel QWidgetAction
QDockWidget QListWidgetItem QSslCertificate QWidgetItem
QDomAttr QLocale QSslCipher QWindowsMime
QDomCDATASection QLocalServer QSslConfiguration QWindowsStyle
QDomCharacterData QLocalSocket QSslError QWindowStateChangeEvent
QDomComment QMacCocoaViewContainer QSslKey QWindowsVistaStyle
QDomDocument QMacNativeWidget QSslSocket QWindowsXPStyle
QDomDocumentFragment QMacPasteboardMime QStack QWizard
QDomDocumentType QMacStyle QStackedLayout QWizardPage
QDomElement QMainWindow QStackedWidget QWorkspace
QDomEntity QMap QStandardItem QWriteLocker
QDomEntityReference QMapIterator QStandardItemEditorCreator QX11EmbedContainer
QDomImplementation QMatrix QStandardItemModel QX11EmbedWidget
QDomNamedNodeMap QMdiArea QStatusBar QX11Info
QDomNode QMdiSubWindow QStatusTipEvent QXmlAttributes
QDomNodeList MediaController (Phonon) QString QXmlContentHandler
QDomNotation MediaNode (Phonon) QStringList QXmlDeclHandler
QDomProcessingInstruction MediaObject (Phonon) QStringListModel QXmlDefaultHandler
QDomText MediaSource (Phonon) QStringMatcher QXmlDTDHandler
QDoubleSpinBox QMenu QStringRef QXmlEntityResolver
QDoubleValidator QMenuBar QStyle QXmlErrorHandler
QDrag QMessageBox QStyledItemDelegate QXmlFormatter
QDragEnterEvent QMetaClassInfo QStyleFactory QXmlInputSource
QDragLeaveEvent QMetaEnum QStyleHintReturn QXmlItem
QDragMoveEvent QMetaMethod QStyleHintReturnMask QXmlLexicalHandler
QDropEvent QMetaObject QStyleHintReturnVariant QXmlLocator
QDynamicPropertyChangeEvent QMetaProperty QStyleOption QXmlName
Effect (Phonon) QMetaType QStyleOptionButton QXmlNamePool
EffectParameter (Phonon) QMimeData QStyleOptionComboBox QXmlNamespaceSupport
EffectWidget (Phonon) QMimeSource QStyleOptionComplex QXmlNodeModelIndex
QErrorMessage QModelIndex QStyleOptionDockWidget QXmlParseException
QEvent QMotifStyle QStyleOptionFocusRect QXmlQuery
QEventLoop QMouseEvent QStyleOptionFrame QXmlReader
Exception (QtConcurrent) QMoveEvent QStyleOptionFrameV2 QXmlResultItems
QExplicitlySharedDataPointer QMovie QStyleOptionFrameV3 QXmlSerializer
QExtensionFactory QMultiHash QStyleOptionGraphicsItem QXmlSimpleReader
QExtensionManager QMultiMap QStyleOptionGroupBox QXmlStreamAttribute
QFile QMutableHashIterator QStyleOptionHeader QXmlStreamAttributes
QFileDialog QMutableLinkedListIterator QStyleOptionMenuItem QXmlStreamEntityDeclaration
QFileIconProvider QMutableListIterator QStyleOptionProgressBar QXmlStreamEntityResolver
QFileInfo QMutableMapIterator QStyleOptionProgressBarV2 QXmlStreamNamespaceDeclaration
QFileOpenEvent QMutableSetIterator QStyleOptionQ3DockWindow QXmlStreamNotationDeclaration
QFileSystemModel QMutableVectorIterator QStyleOptionQ3ListView QXmlStreamReader
QFileSystemWatcher QMutex QStyleOptionQ3ListViewItem QXmlStreamWriter

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


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.1