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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.4.1