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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 and the Qt 4.3 Class Chart (PDF).

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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.4.0