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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.4.0