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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.4.1