Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions

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

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


Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.0-tp1