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

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


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.0-rc1