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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 4.1 Class Chart (PDF).

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

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

Copyright © 2006 Trolltech Trademarks
Qt 4.1.3