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 4.1 Class Chart (PDF).

QAbstractButton QDialogButtonBox QInputEvent QRectF QTableWidget
QAbstractEventDispatcher QDir QInputMethodEvent QRegExp QTableWidgetItem
QAbstractExtensionFactory QDirectPainter QIntValidator QRegExpValidator QTableWidgetSelectionRange
QAbstractExtensionManager QDirModel QIODevice QRegion QTabWidget
QAbstractFileEngine QDockWidget QItemDelegate QResizeEvent QTcpServer
QAbstractFileEngineHandler QDomAttr QItemEditorCreatorBase QResource QTcpSocket
QAbstractFormBuilder QDomCDATASection QItemEditorFactory QRubberBand QTemporaryFile
QAbstractGraphicsShapeItem QDomCharacterData QItemSelection QScreen QTestEventList
QAbstractItemDelegate QDomComment QItemSelectionModel QScreenCursor QTextBlock
QAbstractItemModel QDomDocument QItemSelectionRange QScreenDriverFactory QTextBlockFormat
QAbstractItemView QDomDocumentFragment QKbdDriverFactory QScreenDriverPlugin QTextBlockGroup
QAbstractListModel QDomDocumentType QKbdDriverPlugin QScrollArea QTextBlockUserData
QAbstractPrintDialog QDomElement QKeyEvent QScrollBar QTextBrowser
QAbstractProxyModel QDomEntity QKeySequence QSemaphore QTextCharFormat
QAbstractScrollArea QDomEntityReference QLabel QSessionManager QTextCodec
QAbstractSlider QDomImplementation QLatin1Char QSet QTextCodecPlugin
QAbstractSocket QDomNamedNodeMap QLatin1String QSetIterator QTextCursor
QAbstractSpinBox QDomNode QLayout QSettings QTextDecoder
QAbstractTableModel QDomNodeList QLayoutItem QSharedData QTextDocument
QAbstractTextDocumentLayout QDomNotation QLCDNumber QSharedDataPointer QTextDocumentFragment
QAccessible QDomProcessingInstruction QLibrary QShortcut QTextEdit
QAccessibleBridge QDomText QLibraryInfo QShortcutEvent QTextEncoder
QAccessibleBridgePlugin QDoubleSpinBox QLine QShowEvent QTextFormat
QAccessibleEvent QDoubleValidator QLinearGradient QSignalMapper QTextFragment
QAccessibleInterface QDrag QLineEdit QSignalSpy QTextFrame
QAccessibleObject QDragEnterEvent QLineF QSize QTextFrameFormat
QAccessiblePlugin QDragLeaveEvent QLinkedList QSizeF QTextImageFormat
QAccessibleWidget QDragMoveEvent QLinkedListIterator QSizeGrip QTextInlineObject
QAction QDropEvent QList QSizePolicy QTextLayout
QActionEvent QDynamicPropertyChangeEvent QListIterator QSlider QTextLength
QActionGroup QErrorMessage QListView QSocketNotifier QTextLine
QApplication QEvent QListWidget QSortFilterProxyModel QTextList
QAssistantClient QEventLoop QListWidgetItem QSound QTextListFormat
QAxAggregated QExtensionFactory QLocale QSpacerItem QTextObject
QAxBase QExtensionManager QMacPasteboardMime QSpinBox QTextOption
QAxBindable QFile QMacStyle QSplashScreen QTextStream
QAxFactory QFileDialog QMainWindow QSplitter QTextTable
QAxObject QFileIconProvider QMap QSplitterHandle QTextTableCell
QAxScript QFileInfo QMapIterator QSqlDatabase QTextTableFormat
QAxScriptEngine QFileOpenEvent QMatrix QSqlDriver QThread
QAxScriptManager QFileSystemWatcher QMenu QSqlDriverCreator QThreadStorage
QAxWidget QFlag QMenuBar QSqlDriverCreatorBase QTime
QBasicTimer QFlags QMessageBox QSqlDriverPlugin QTimeEdit
QBitArray QFocusEvent QMetaClassInfo QSqlError QTimeLine
QBitmap QFocusFrame QMetaEnum QSqlField QTimer
QBoxLayout QFont QMetaMethod QSqlIndex QTimerEvent
QBrush QFontComboBox QMetaObject QSqlQuery QToolBar
QBuffer QFontDatabase QMetaProperty QSqlQueryModel QToolBox
QButtonGroup QFontDialog QMetaType QSqlRecord QToolButton
QByteArray QFontInfo QMimeData QSqlRelation QToolTip
QByteArrayMatcher QFontMetrics QMimeSource QSqlRelationalDelegate QTranslator
QCache QFontMetricsF QModelIndex QSqlRelationalTableModel QTreeView
QCalendarWidget QFormBuilder QMotifStyle QSqlResult QTreeWidget
QCDEStyle QFrame QMouseDriverFactory QSqlTableModel QTreeWidgetItem
QChar QFSFileEngine QMouseDriverPlugin QStack QTreeWidgetItemIterator
QCheckBox QFtp QMouseEvent QStackedLayout QUdpSocket
QChildEvent QGenericArgument QMoveEvent QStackedWidget QUiLoader
QCleanlooksStyle QGenericReturnArgument QMovie QStandardItem QUndoCommand
QClipboard QGLColormap QMultiHash QStandardItemEditorCreator QUndoGroup
QCloseEvent QGLContext QMultiMap QStandardItemModel QUndoStack
QColor QGLFormat QMutableHashIterator QStatusBar QUndoView
QColorDialog QGLFramebufferObject QMutableLinkedListIterator QStatusTipEvent QUrl
QColormap QGLPixelBuffer QMutableListIterator QString QUrlInfo
QComboBox QGLWidget QMutableMapIterator QStringList QUuid
QCommonStyle QGradient QMutableSetIterator QStringListModel QValidator
QCompleter QGraphicsEllipseItem QMutableVectorIterator QStringMatcher QVariant
QConicalGradient QGraphicsItem QMutex QStyle QVarLengthArray
QContextMenuEvent QGraphicsItemAnimation QMutexLocker QStyleFactory QVBoxLayout
QCopChannel QGraphicsItemGroup QNetworkAddressEntry QStyleHintReturn QVector
QCoreApplication QGraphicsLineItem QNetworkInterface QStyleHintReturnMask QVectorIterator
QCursor QGraphicsPathItem QNetworkProxy QStyleOption QWaitCondition
QCustomRasterPaintDevice QGraphicsPixmapItem QObject QStyleOptionButton QWhatsThis
QDataStream QGraphicsPolygonItem QObjectCleanupHandler QStyleOptionComboBox QWhatsThisClickedEvent
QDataWidgetMapper QGraphicsRectItem QPageSetupDialog QStyleOptionComplex QWheelEvent
QDate QGraphicsScene QPaintDevice QStyleOptionDockWidget QWidget
QDateEdit QGraphicsSceneContextMenuEvent QPaintEngine QStyleOptionFocusRect QWidgetAction
QDateTime QGraphicsSceneEvent QPaintEngineState QStyleOptionFrame QWidgetItem
QDateTimeEdit QGraphicsSceneHoverEvent QPainter QStyleOptionFrameV2 QWindowsMime
QDBusAbstractAdaptor QGraphicsSceneMouseEvent QPainterPath QStyleOptionGraphicsItem QWindowsStyle
QDBusAbstractInterface QGraphicsSceneWheelEvent QPainterPathStroker QStyleOptionGroupBox QWindowStateChangeEvent
QDBusArgument QGraphicsSimpleTextItem QPaintEvent QStyleOptionHeader QWindowsXPStyle
QDBusConnection QGraphicsSvgItem QPair QStyleOptionMenuItem QWorkspace
QDBusConnectionInterface QGraphicsTextItem QPalette QStyleOptionProgressBar QWriteLocker
QDBusError QGraphicsView QPen QStyleOptionProgressBarV2 QWSCalibratedMouseHandler
QDBusInterface QGridLayout QPersistentModelIndex QStyleOptionQ3DockWindow QWSClient
QDBusMessage QGroupBox QPicture QStyleOptionQ3ListView QWSEmbedWidget
QDBusObjectPath QHash QPictureFormatPlugin QStyleOptionQ3ListViewItem QWSEvent
QDBusReply QHashIterator QPictureIO QStyleOptionRubberBand QWSInputMethod
QDBusServer QHBoxLayout QPixmap QStyleOptionSizeGrip QWSKeyboardHandler
QDBusSignature QHeaderView QPixmapCache QStyleOptionSlider QWSMouseHandler
QDBusVariant QHelpEvent QPlastiqueStyle QStyleOptionSpinBox QWSPointerCalibrationData
QDecoration QHideEvent QPluginLoader QStyleOptionTab QWSScreenSaver
QDecorationFactory QHostAddress QPoint QStyleOptionTabBarBase QWSServer
QDecorationPlugin QHostInfo QPointer QStyleOptionTabV2 QWSWindow
QDesignerActionEditorInterface QHoverEvent QPointF QStyleOptionTabWidgetFrame QWSWindowSurface
QDesignerContainerExtension QHttp QPolygon QStyleOptionTitleBar QX11EmbedContainer
QDesignerCustomWidgetCollectionInterface QHttpHeader QPolygonF QStyleOptionToolBar QX11EmbedWidget
QDesignerCustomWidgetInterface QHttpRequestHeader QPrintDialog QStyleOptionToolBox QX11Info
QDesignerFormEditorInterface QHttpResponseHeader QPrintEngine QStyleOptionToolButton QXmlAttributes
QDesignerFormWindowCursorInterface QIcon QPrinter QStyleOptionViewItem QXmlContentHandler
QDesignerFormWindowInterface QIconDragEvent QProcess QStyleOptionViewItemV2 QXmlDeclHandler
QDesignerFormWindowManagerInterface QIconEngine QProgressBar QStylePainter QXmlDefaultHandler
QDesignerMemberSheetExtension QIconEnginePlugin QProgressDialog QStylePlugin QXmlDTDHandler
QDesignerObjectInspectorInterface QImage QProxyModel QSvgRenderer QXmlEntityResolver
QDesignerPropertyEditorInterface QImageIOHandler QPushButton QSvgWidget QXmlErrorHandler
QDesignerPropertySheetExtension QImageIOPlugin QQueue QSyntaxHighlighter QXmlInputSource
QDesignerTaskMenuExtension QImageReader QRadialGradient QSysInfo QXmlLexicalHandler
QDesignerWidgetBoxInterface QImageWriter QRadioButton QSystemLocale QXmlLocator
QDesktopServices QInputContext QRasterPaintEngine QSystemTrayIcon QXmlNamespaceSupport
QDesktopWidget QInputContextFactory QReadLocker QTabBar QXmlParseException
QDial QInputContextPlugin QReadWriteLock QTabletEvent QXmlReader
QDialog QInputDialog QRect QTableView QXmlSimpleReader

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


Copyright © 2006 Trolltech Trademarks
Qt 4.2.2