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Sourcecode: qt4-x11 version File versions

Class List

Here are the classes, structs, unions and interfaces with brief descriptions:
qdesigner_internal::LayoutBaseclass for layouting widgets in the Designer
Q3AccelHandles keyboard accelerator and shortcut keys
Q3AccessibleTextEditImplements the QAccessibleInterface for richtext editors
Q3AccessibleTitleBarImplements the QAccessibleInterface for title bars
Q3ActionAbstract user interface action that can appear both in menus and tool bars
Q3ActionGroupGroups actions together
Q3ButtonCompatibility base class of button widgets
Q3ButtonGroupOrganizes QAbstractButton widgets in a group
Q3Canvas2D area that can contain Q3CanvasItem objects
Q3CanvasEllipseEllipse or ellipse segment on a Q3Canvas
Q3CanvasItemAbstract graphic object on a Q3Canvas
Q3CanvasItemListList of Q3CanvasItems
Q3CanvasLineLine on a Q3Canvas
Q3CanvasPixmapPixmaps for Q3CanvasSprites
Q3CanvasPixmapArrayArray of Q3CanvasPixmaps
Q3CanvasPolygonPolygon on a Q3Canvas
Q3CanvasPolygonalItemPolygonal canvas item on a Q3Canvas
Q3CanvasRectangleRectangle on a Q3Canvas
Q3CanvasSplineMulti-bezier splines on a Q3Canvas
Q3CanvasSpriteAnimated canvas item on a Q3Canvas
Q3CanvasTextText object on a Q3Canvas
Q3CanvasViewOn-screen view of a Q3Canvas
Q3CheckListItemCheckable list view items
Q3CheckTableItemCheckboxes in Q3Tables
Q3ColorDragDrag and drop object for transferring colors between widgets
Q3ComboBoxCombined button and popup list
Q3ComboTableItemMeans of using comboboxes in Q3Tables
Q3CStringAbstraction of the classic C zero-terminated char array (char *)
Q3DataBrowserData manipulation and navigation for data entry forms
Q3DataManagerInternal class for implementing the data-aware widgets
Q3DataTableFlexible SQL table widget that supports browsing and editing
Q3DataViewRead-only SQL forms
Q3DateEditDate editor
Q3DateTimeEditCombines a Q3DateEdit and Q3TimeEdit widget into a single widget for editing datetimes
Q3DateTimeEditBaseAbstraction for date and edit editors
Q3DeepCopy< T >The Q3DeepCopy class is a template class which ensures that implicitly shared and explicitly shared classes reference unique data
Q3DnsAsynchronous DNS lookups
Q3Dns::MailServerThe Q3Dns::MailServer class is described in Q3Dns::mailServers()
Q3Dns::ServerThe Q3Dns::Server class is described in Q3Dns::servers()
Q3DockAreaManages and lays out Q3DockWindows
Q3DockWindowWidget which can be docked inside a Q3DockArea or floated as a top level window on the desktop
Q3DragObjectEncapsulates MIME-based data transfer
Q3DropSiteNothing and does nothing
Q3EditorFactoryUsed to create editor widgets for QVariant data types
Q3FileDialogDialogs that allow users to select files or directories
Q3FileIconProviderIcons for Q3FileDialog to use
Q3FilePreviewFile previewing in Q3FileDialog
Q3FtpImplementation of the FTP protocol
Q3GArrayInternal class for implementing the QMemArray class
Q3GCacheInternal class for implementing Q3Cache template classes
Q3GCacheIteratorInternal class for implementing Q3CacheIterator and QIntCacheIterator
Q3GDictInternal class for implementing QDict template classes
Q3GDictIteratorInternal class for implementing QDictIterator and QIntDictIterator
Q3GListInternal class for implementing Qt collection classes
Q3GListIteratorInternal class for implementing Q3PtrListIterator
Q3GridSimple geometry management of its children
Q3GridViewAbstract base for fixed-size grids
Q3GroupBoxGroup box frame with a title
Q3GVectorInternal class for implementing Qt collection classes
Q3HBoxHorizontal geometry management for its child widgets
Q3HButtonGroupOrganizes button widgets in a group with one horizontal row
Q3HeaderHeader row or column, e.g. for tables and listviews
Q3HGroupBoxOrganizes widgets in a group with one horizontal row
Q3HttpImplementation of the HTTP protocol
Q3HttpHeaderHeader information for HTTP
Q3HttpRequestHeaderRequest header information for HTTP
Q3HttpResponseHeaderResponse header information for HTTP
Q3IconDragSupports drag and drop operations within a Q3IconView
Q3IconDragItemEncapsulates a drag item.
Q3IconViewArea with movable labelled icons
Q3IconViewItemSingle item in a Q3IconView
Q3ImageDragDrag and drop object for transferring images
Q3ListBoxList of selectable, read-only items
Q3ListBoxItemBase class of all list box items
Q3ListBoxPixmapList box items with a pixmap and optional text
Q3ListBoxTextList box items that display text
Q3ListViewImplements a list/tree view
Q3ListViewItemImplements a list view item
Q3ListViewItemIteratorIterator for collections of Q3ListViewItems
Q3LNodeInternal class for the Q3PtrList template collection
Q3LocalFsImplementation of a QNetworkProtocol that works on the local file system
Q3MainWindowMain application window, with a menu bar, dock windows (e.g. for toolbars), and a status bar
Q3MimeSourceFactoryExtensible provider of mime-typed data
Q3MultiLineEditSimple editor for inputting text
Q3NetworkOperationCommon operations for network protocols
Q3NetworkProtocolCommon API for network protocols
Q3PaintDeviceMetricsInformation about a paint device
Q3PainterQt 3 compatibility wrapper for QPainter
Q3PicturePaint device that records and replays Q3Painter commands
Q3ProcessUsed to start external programs and to communicate with them
Q3ProgressBarHorizontal progress bar
Q3ProgressDialogFeedback on the progress of a slow operation
Q3PtrCollectionBase class of most pointer-based Qt collections
Q3RangeControlInteger value within a range
Q3ScrollViewScrolling area with on-demand scroll bars
Q3SemaphoreRobust integer semaphore
Q3ServerSocketTCP-based server
Q3SharedUsed internally for implementing shared classes.
Q3SignalCan be used to send signals for classes that don't inherit QObject
Q3SimpleRichTextSmall displayable piece of rich text
Q3SocketBuffered TCP connection
Q3SocketDevicePlatform-independent low-level socket API
Q3SpinWidgetInternal range control related class
Q3SqlCursorBrowsing and editing of SQL tables and views
Q3SqlCursorManagerManages a database cursor
Q3SqlEditorFactoryUsed to create the editors used by Q3DataTable and Q3SqlForm
Q3SqlFormCreates and manages data entry forms tied to SQL databases
Q3SqlPropertyMapUsed to map widgets to SQL fields
Q3SqlSelectCursorBrowsing of general SQL SELECT statements
Q3StoredDragSimple stored-value drag object for arbitrary MIME data
Q3StyleSheetCollection of styles for rich text rendering and a generator of tags
Q3StyleSheetItemEncapsulation of a set of text styles
Q3SyntaxHighlighterBase class for implementing Q3TextEdit syntax highlighters
Q3TabDialogStack of tabbed widgets
Q3TableFlexible editable table widget
Q3TableItemCell content for Q3Table cells
Q3TableSelectionAccess to a selected area in a Q3Table
Q3TextBrowserRich text browser with hypertext navigation
Q3TextDragDrag and drop object for transferring plain and Unicode text
Q3TextEditPowerful single-page rich text editor
Q3TextStreamBasic functions for reading and writing text using a QIODevice
Q3TextViewRich text viewer
Q3TimeEditTime editor
Q3ToolBarMovable panel containing widgets such as tool buttons
Q3UriDragDrag object for a list of URI references
Q3UrlURL parser and simplifies working with URLs
Q3UrlOperatorCommon operations on URLs
Q3VBoxVertical geometry management of its child widgets
Q3VButtonGroupOrganizes button widgets in a vertical column
Q3VGroupBoxOrganizes widgets in a group with one vertical column
Q3WidgetStackStack of widgets of which only the top widget is user-visible
Q3WizardFramework for wizard dialogs
QAbstractButtonAbstract base class of button widgets, providing functionality common to buttons
QAbstractEventDispatcherManages Qt's event queue, excluding GUI-related events
QAbstractExtensionFactoryInterface for extension factories in Qt Designer
QAbstractExtensionManagerInterface for extension managers in Qt Designer
QAbstractFileEngineAbstraction for accessing the filesystem
QAbstractFileEngineHandlerWay to register custom file engines with your application
QAbstractFormBuilderDefault implementation for classes that create user interfaces at run-time
QAbstractGraphicsShapeItemCommon base for all path items
QAbstractItemDelegateUsed to display and edit data items from a model
QAbstractItemModelAbstract interface for item model classes
QAbstractItemViewBasic functionality for item view classes
QAbstractListModelAbstract model that can be subclassed to create one-dimensional list models
QAbstractPageSetupDialogBase for implementations of page setup dialogs
QAbstractPrintDialogBase implementation for print dialogs used to configure printers
QAbstractProxyModelBase class for proxy item models that can do sorting, filtering or other data processing tasks.
  • This class defines the standard interface that proxy models must use to be able to interoperate correctly with other model/view components. It is not supposed to be instantiated directly
QAbstractScrollAreaScrolling area with on-demand scroll bars
QAbstractSliderInteger value within a range
QAbstractSocketBase functionality common to all socket types
QAbstractSpinBoxSpinbox and a line edit to display values
QAbstractTableModelAbstract model that can be subclassed to create table models
QAbstractTextDocumentLayoutAbstract base class used to implement custom layouts for QTextDocuments
QAbstractTextDocumentLayout::PaintContextThe QAbstractTextDocumentLayout::PaintContext class is a convenience class defining the parameters of a painter context
QAbstractTextDocumentLayout::SelectionPosition within the document, where the cursor line should be drawn
QAccessibleEnums and static functions relating to accessibility
QAccessibleApplicationImplements the QAccessibleInterface for QApplication
QAccessibleBridgeBase class for accessibility back-ends
QAccessibleBridgePluginAbstract base for accessibility bridge plugins
QAccessibleButtonImplements the QAccessibleInterface for button type widgets
QAccessibleComboBoxImplements the QAccessibleInterface for editable and read-only combo boxes
QAccessibleDisplayImplements the QAccessibleInterface for widgets that display information
QAccessibleEventUsed to query addition accessibility information about complex widgets
QAccessibleHeaderImplements the QAccessibleInterface for header widgets
QAccessibleIconViewImplements the QAccessibleInterface for icon views
QAccessibleInterfaceDefines an interface that exposes information about accessible objects
QAccessibleLineEditImplements the QAccessibleInterface for widgets with editable text
QAccessibleListBoxImplements the QAccessibleInterface for list boxes
QAccessibleListViewImplements the QAccessibleInterface for list views
QAccessibleObjectImplements parts of the QAccessibleInterface for QObjects
QAccessiblePluginAbstract base for accessibility plugins
QAccessibleScrollBarImplements the QAccessibleInterface for scroll bars
QAccessibleSliderImplements the QAccessibleInterface for sliders
QAccessibleSpinBoxImplements the QAccessibleInterface for spinbox widgets
QAccessibleTabBarImplements the QAccessibleInterface for tab bars
QAccessibleTextEditImplements the QAccessibleInterface for richtext editors
QAccessibleToolButtonImplements the QAccessibleInterface for tool buttons
QAccessibleWidgetImplements the QAccessibleInterface for QWidgets
QAccessibleWidgetStackImplements the QAccessibleInterface for widget stacks
QActionAbstract user interface action that can be inserted into widgets
QActionEventEvent that is generated when a QAction is added, removed, or changed
QActionGroupGroups actions together
QApplicationManages the GUI application's control flow and main settings
QAssistantClientMeans of using Qt Assistant as an application's help tool
QBasicTimerTimer events for objects
QBitArrayArray of bits
QBitmapMonochrome (1-bit depth) pixmaps
QBitRefInternal class, used with QBitArray
QBoxLayoutLines up child widgets horizontally or vertically
QBrushDefines the fill pattern of shapes drawn by QPainter
QBufferQIODevice interface for a QByteArray
QButtonGroupContainer to organize groups of button widgets
QByteArrayArray of bytes
QByteArrayMatcherHolds a sequence of bytes that can be quickly matched in a byte array
QCalendarWidgetMonthly based calendar widget allowing the user to select a date
QCDEStyleCDE look and feel
QChar16-bit Unicode character
QCharRefHelper class for QString
QCheckBoxCheckbox with a text label
QChildEventEvent parameters for child object events
QCleanlooksStyleWidget style similar to the Clearlooks style available in GNOME
QClipboardAccess to the window system clipboard
QClipboardEventParameters used in a clipboard event
QCloseEventParameters that describe a close event
QColorColors based on RGB, HSV or CMYK values
QColorDialogDialog widget for specifying colors
QColorGroupColor groups for each widget state.
QColormapMaps device independent QColors to device dependent pixel values
QComboBoxCombined button and popup list
QCommonStyleEncapsulates the common Look and Feel of a GUI
QCompleterCompletions based on a item model
QConicalGradientUsed in combination with QBrush to specify a conical gradient brush
QConstStringWrapper for constant Unicode string data.
QContextMenuEventParameters that describe a context menu event
QCoreApplicationEvent loop for console Qt applications
QCursorMouse cursor with an arbitrary shape
QCustomEventSupport for custom events
QCustomRasterPaintDeviceProvided to activate hardware accelerated paint engines in Qtopia Core
QDataStreamSerialization of binary data to a QIODevice
QDataWidgetMapperMapping between a section of a data model to widgets
QDateDate functions
QDateEditWidget for editing dates based on the QDateTimeEdit widget
QDateTimeDate and time functions
QDateTimeEditWidget for editing dates and times
QDBusAbstractAdaptorBase class of D-Bus adaptor classes
QDBusAbstractInterfaceBase class for all D-Bus interfaces in the QtDBus binding, allowing access to remote interfaces
QDBusArgumentUsed to marshall and demarshall D-BUS arguments
QDBusConnectionConnection to the D-Bus bus daemon
QDBusConnectionInterfaceAccess to the D-Bus bus daemon service
QDBusErrorError received from the D-Bus bus or from remote applications found in the bus
QDBusInterfaceProxy for interfaces on remote objects
QDBusIntrospectionInformation about introspected objects and interfaces on D-Bus
QDBusIntrospection::ArgumentOne argument to a D-Bus method or signal
QDBusIntrospection::InterfaceInformation about one interface on the bus
QDBusIntrospection::MethodInformation about one method
QDBusIntrospection::ObjectInformation about one object on the bus
QDBusIntrospection::ObjectTreeComplete information about one object node and its descendency
QDBusIntrospection::PropertyInformation about one property
QDBusIntrospection::SignalInformation about one signal
QDBusMessageOne message sent or received over the D-Bus bus
QDBusMetaTypeMeta-type registration system for the QtDBus module
QDBusObjectPathEnables the programmer to identify the OBJECT_PATH type provided by the D-BUS typesystem
QDBusReply< T >The QDBusReply class stores the reply for a method call to a remote object
QDBusServerPeer-to-peer communication between processes on the same computer
QDBusSignatureEnables the programmer to identify the SIGNATURE type provided by the D-BUS typesystem
QDBusVariantEnables the programmer to identify the variant type provided by the D-BUS typesystem
QDesignerActionEditorInterfaceAllows you to change the focus of Qt Designer's action editor
QDesignerComponentsCentral resource for the various components used in the user interface. QtDesigner
QDesignerExtraInfoExtensionExtra information about a widget in Qt Designer. QtDesigner
QDesignerFormEditorInterfaceAllows you to access Qt Designer's various components
QDesignerFormEditorPluginInterfaceInterface that is used to manage plugins for Qt Designer's form editor component. QtDesigner
QDesignerFormWindowCursorInterfaceAllows you to query and modify a form window's widget selection, and in addition modify the properties of all the form's widgets
QDesignerFormWindowInterfaceAllows you to query and manipulate form windows appearing in Qt Designer's workspace
QDesignerFormWindowManagerInterfaceAllows you to manipulate the collection of form windows in Qt Designer, and control Qt Designer's form editing actions
QDesignerFormWindowToolInterfaceAn interface that enables tools to be used on items in a form window
QDesignerMetaDataBaseInterfaceInterface to Qt Designer's object meta database. QtDesigner
QDesignerMetaDataBaseItemInterfaceInterface to individual items in Qt Designer's meta database. QtDesigner
QDesignerObjectInspectorInterfaceAllows you to change the focus of Qt Designer's object inspector
QDesignerPropertyEditorInterfaceAllows you to query and manipulate the current state of Qt Designer's property editor
QDesignerWidgetBoxInterfaceAllows you to control the contents of Qt Designer's widget box
QDesignerWidgetBoxInterface::CategoryCategory in Qt Designer's widget box component
QDesignerWidgetBoxInterface::WidgetSpecified a widget in Qt Designer's widget box component
QDesignerWidgetDataBaseInterfaceInterface that is used to access and modify Qt Designer's widget database. QtDesigner
QDesignerWidgetDataBaseItemInterfaceInterface that is used to access individual items in Qt Designer's widget database. QtDesigner
QDesignerWidgetFactoryInterfaceInterface that is used to control the widget factory used by Qt Designer. QtDesigner
QDesktopServicesMethods for accessing common desktop services
QDialRounded range control (like a speedometer or potentiometer)
QDialogBase class of dialog windows
QDialogButtonBoxWidget that presents buttons in a layout that is appropriate to the current widget style
QDirAccess to directory structures and their contents
QDirModelData model for the local filesystem
QDockWidgetWidget that can be docked inside a QMainWindow or floated as a top-level window on the desktop
QDomAttrOne attribute of a QDomElement
QDomCDATASectionXML CDATA section
QDomCharacterDataGeneric string in the DOM
QDomCommentXML comment
QDomDocumentXML document
QDomDocumentFragmentTree of QDomNodes which is not usually a complete QDomDocument
QDomDocumentTypeRepresentation of the DTD in the document tree
QDomElementOne element in the DOM tree
QDomEntityXML entity
QDomEntityReferenceXML entity reference
QDomImplementationInformation about the features of the DOM implementation
QDomNamedNodeMapCollection of nodes that can be accessed by name
QDomNodeBase class for all the nodes in a DOM tree
QDomNodeListList of QDomNode objects
QDomNotationXML notation
QDomProcessingInstructionXML processing instruction
QDomTextText data in the parsed XML document
QDoubleSpinBoxSpin box widget that takes doubles
QDoubleValidatorRange checking of floating-point numbers
QDragSupport for MIME-based drag and drop data transfer
QDragEnterEventEvent which is sent to a widget when a drag and drop action enters it
QDragLeaveEventEvent that is sent to a widget when a drag and drop action leaves it
QDragMoveEventEvent which is sent while a drag and drop action is in progress
QDropEventEvent which is sent when a drag and drop action is completed
QDynamicPropertyChangeEventEvent parameters for dynamic property change events
QErrorMessageError message display dialog
QEventBase class of all event classes. Event objects contain event parameters
QEventLoopMeans of entering and leaving an event loop
QExtensionFactoryAllows you to create a factory that is able to make instances of custom extensions in Qt Designer
QExtensionManagerExtension management facilities for Qt Designer
QFileInterface for reading from and writing to files
QFileDialogDialog that allow users to select files or directories.
QFileIconProviderFile icon for the QDirModel class
QFileInfoSystem-independent file information
QFileOpenEventEvent that will be sent when there is a request to open a file
QFileSystemWatcherInterface for monitoring files and directories for modifications
QFlagHelper data type for QFlags
QFlagsType-safe way of storing OR-combinations of enum values
QFocusEventEvent parameters for widget focus events
QFocusFrameFocus frame which can be outside of a widget's normal paintable area
QFontFont used for drawing text
QFontComboBoxCombobox that lets the user select a font family
QFontDatabaseInformation about the fonts available in the underlying window system
QFontDialogDialog widget for selecting a font
QFontInfoGeneral information about fonts
QFontMetricsFont metrics information
QFontMetricsFFont metrics information
QFormBuilderUsed to dynamically construct user interfaces from .ui files at run-time
QFrameBase class of widgets that can have a frame
QFSFileEngineImplements Qt's default file engine
QFtpImplementation of the client side of FTP protocol
QGb2312CodecConversion to and from the Chinese GB2312 encoding
QGbkCodecConversion to and from the Chinese GBK encoding
QGenericArgumentInternal helper class for marshalling arguments
QGenericReturnArgumentInternal helper class for marshalling arguments
QGLColormapUsed for installing custom colormaps into QGLWidgets
QGLContextEncapsulates an OpenGL rendering context
QGLFormatDisplay format of an OpenGL rendering context
QGLFramebufferObjectEncapsulates an OpenGL framebuffer object
QGLPixelBufferEncapsulates an OpenGL pbuffer
QGLWidgetWidget for rendering OpenGL graphics
QGradientUsed in combination with QBrush to specify gradient fills
QGraphicsEllipseItemEllipse item that you can add to a QGraphicsScene
QGraphicsItemBase class for all graphical items in a QGraphicsScene
QGraphicsItemAnimationSimple animation support for QGraphicsItem
QGraphicsItemGroupTreating a group of items as one
QGraphicsLineItemLine item that you can add to a QGraphicsScene
QGraphicsPathItemPath item that you can add to a QGraphicsScene
QGraphicsPixmapItemPixmap item that you can add to a QGraphicsScene
QGraphicsPolygonItemPolygon item that you can add to a QGraphicsScene
QGraphicsRectItemRectangle item that you can add to a QGraphicsScene
QGraphicsSceneSurface for managing a large number of 2D graphical items
QGraphicsSceneContextMenuEventContext menu events in the graphics view framework
QGraphicsSceneDragDropEventEvents for drag and drop in the graphics view framework
QGraphicsSceneEventBase class for all graphics view related events
QGraphicsSceneHelpEventEvents when a tooltip is requested
QGraphicsSceneHoverEventHover events in the graphics view framework
QGraphicsSceneMouseEventMouse events in the graphics view framework
QGraphicsSceneWheelEventWheel events in the graphics view framework
QGraphicsSimpleTextItemText item that you can add to a QGraphicsScene
QGraphicsSvgItemQGraphicsItem that can be used to render the contents of SVG files
QGraphicsTextItemText item that you can add to a QGraphicsScene to display formatted text
QGraphicsViewWidget for displaying the contents of a QGraphicsScene
QGridLayoutLays out widgets in a grid
QGroupBoxGroup box frame with a title
QHash< Key, T >The QHash class is a template class that provides a hash-table-based dictionary
QHash< Key, T >::const_iteratorThe QHash::const_iterator class provides an STL-style const iterator for QHash and QMultiHash
QHash< Key, T >::iteratorThe QHash::iterator class provides an STL-style non-const iterator for QHash and QMultiHash
QHBoxLayoutLines up widgets horizontally
QHeaderViewHeader row or header column for item views
QHelpEventEvent that is used to request helpful information about a particular point in a widget
QHideEventEvent which is sent after a widget is hidden
QHostAddressIP address.


QHostInfoStatic functions for host name lookups
QHoverEventParameters that describe a mouse event
QHttpImplementation of the HTTP protocol
QHttpHeaderHeader information for HTTP
QHttpRequestHeaderRequest header information for HTTP
QHttpResponseHeaderResponse header information for HTTP
QIconScalable icons in different modes and states
QIconDragEventIndicates that a main icon drag has begun
QIconEngineAbstract base class for QIcon renderers
QIconEnginePluginAbstract base for custom QIconEngine plugins
QImageHardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device
QImageIOHandlerDefines the common image I/O interface for all image formats in Qt
QImageIOHandlerFactoryInterfaceFactory interface for QImageIOPlugin
QImageIOPluginDefines an interface for writing an image format plugin
QImageReaderFormat independent interface for reading images from files or other devices
QImageWriterFormat independent interface for writing images to files or other devices
QInputContextAbstracts the input method dependent data and composing state
QInputContextFactoryCreates QInputContext objects
QInputContextPluginAbstract base for custom QInputContext plugins
QInputDialogSimple convenience dialog to get a single value from the user.
QInputEventBase class for events that describe user input
QInputMethodEventParameters for input method events
QInputMethodEvent::AttributeThe QInputMethodEvent::Attribute class stores an input method attribute
QIntValidatorValidator that ensures a string contains a valid integer within a specified range
QIODeviceBase interface class of all I/O devices in Qt
QIsciiCodecConversion to and from the ISCII encoding
QItemDelegateDisplay and editing facilities for data items from a model
QItemEditorCreatorBaseAbstract base class that must be subclassed when implementing new item editor creators
QItemEditorFactoryWidgets for editing item data in views and delegates
QItemSelectionManages information about selected items in a model
QItemSelectionModelKeeps track of a view's selected items
QItemSelectionRangeManages information about a range of selected items in a model
QKeyEventDescribes a key event
QKeySequenceEncapsulates a key sequence as used by shortcuts
QLabelText or image display
QLatin1Char8-bit ASCII/Latin-1 character
QLatin1StringThin wrapper around an ASCII/Latin-1 encoded string literal
QLayoutBase class of geometry managers
QLayoutItemAbstract item that a QLayout manipulates
QLCDNumberDisplays a number with LCD-like digits
QLibraryLoads shared libraries at runtime
QLibraryInfoInformation about the Qt library
QLineTwo-dimensional vector using integer precision
QLinearGradientUsed in combination with QBrush to specify a linear gradient brush
QLineEditOne-line text editor
QLineFTwo-dimensional vector using floating point precision
QLinkedList< T >The QLinkedList class is a template class that provides linked lists
QLinkedList< T >::const_iteratorThe QLinkedList::const_iterator class provides an STL-style const iterator for QLinkedList
QLinkedList< T >::iteratorThe QLinkedList::iterator class provides an STL-style non-const iterator for QLinkedList
QList< T >The QList class is a template class that provides lists
QList< T >::const_iteratorThe QList::const_iterator class provides an STL-style const iterator for QList and QQueue
QList< T >::iteratorThe QList::iterator class provides an STL-style non-const iterator for QList and QQueue
QListViewList or icon view onto a model
QListWidgetItem-based list widget
QListWidgetItemItem for use with the QListWidget item view class
QLocaleConverts between numbers and their string representations in various languages
QLockWrapper for a System V shared semaphore
QMainWindowMain application window.
QMap< Key, T >The QMap class is a template class that provides a skip-list-based dictionary
QMap< Key, T >::const_iteratorThe QMap::const_iterator class provides an STL-style const iterator for QMap and QMultiMap
QMap< Key, T >::iteratorThe QMap::iterator class provides an STL-style non-const iterator for QMap and QMultiMap
QMatrix2D transformations of a coordinate system
QMenuMenu widget for use in menu bars, context menus, and other popup menus
QMenuBarHorizontal menu bar
QMessageBoxModal dialog with a short message, an icon, and buttons laid out depending on the current style.
QMetaClassInfoAdditional information about a class
QMetaEnumMeta-data about an enumerator
QMetaMethodMeta-data about a member function
QMetaObjectMeta-information about Qt objects
QMetaPropertyMeta-data about a property
QMetaTypeManages named types in the meta-object system
QMimeDataContainer for data that records information about its MIME type
QMimeSourceAbstraction of objects that provided formatted data of a certain MIME type
QModelIndexUsed to locate data in a data model
QMotifStyleMotif look and feel
QMouseEventParameters that describe a mouse event
QMoveEventEvent parameters for move events
QMovieConvenience class for playing movies with QImageReader
QMultiHash< Key, T >The QMultiHash class is a convenience QHash subclass that provides multi-valued hashes
QMultiMap< Key, T >The QMultiMap class is a convenience QMap subclass that provides multi-valued maps
QMutexAccess serialization between threads
QMutexLockerConvenience class that simplifies locking and unlocking mutexes
QMutexPoolPool of QMutex objects
QNativeSocketEngineLow level access to a socket
QNetworkAddressEntryStores one IP address supported by a network interface, along with its associated netmask and broadcast address
QNetworkInterfaceListing of the host's IP addresses and network interfaces
QNetworkProxyNetwork layer proxy
QObjectBase class of all Qt objects
QObjectCleanupHandlerWatches the lifetime of multiple QObjects
QPageSetupDialogConfiguration dialog for the page-related options on a printer
QPaintDeviceBase class of objects that can be painted
QPaintEngineAbstract definition of how QPainter draws to a given device on a given platform
QPaintEngineStateInformation about the active paint engine's current state
QPainterPerforms low-level painting on widgets and other paint devices
QPainterPathContainer for painting operations, enabling graphical shapes to be constructed and reused
QPainterPath::ElementThe QPainterPath::Element class specifies the position and type of a subpath
QPainterPathStrokerUsed to generate fillable outlines for a given painter path
QPaintEventEvent parameters for paint events
QPaletteColor groups for each widget state
QPenDefines how a QPainter should draw lines and outlines of shapes
QPersistentModelIndexUsed to locate data in a data model
QPicturePaint device that records and replays QPainter commands
QPictureFormatPluginAbstract base for custom picture format plugins
QPictureIOParameters for loading and saving pictures
QPixmapOff-screen image representation that can be used as a paint device
QPixmapCacheApplication-wide cache for pixmaps
QPlastiqueStyleWidget style similar to the Plastik style available in KDE
QPluginLoaderLoads a plugin at run-time
QPointDefines a point in the plane using integer precision
QPointer< T >The QPointer class is a template class that provides guarded pointers to QObjects
QPointFDefines a point in the plane using floating point precision
QPolygonVector of points using integer precision
QPolygonFVector of points using floating point precision
QPrintDialogDialog for specifying the printer's configuration
QPrintEngineDefines an interface for how QPrinter interacts with a given printing subsystem
QPrinterPaint device that paints on a printer
QProcessUsed to start external programs and to communicate with them
QProgressBarHorizontal or vertical progress bar
QProgressDialogFeedback on the progress of a slow operation.
QProxyModelSupport for processing data passed between another model and a view
QPushButtonCommand button
QQueue< T >The QQueue class is a generic container that provides a queue
QRadialGradientUsed in combination with QBrush to specify a radial gradient brush
QRadioButtonRadio button with a text label
QRasterPaintEngineEnables hardware acceleration of painting operations in Qtopia Core
QReadLockerConvenience class that simplifies locking and unlocking read-write locks for read access
QReadWriteLockRead-write locking
QRectDefines a rectangle in the plane using integer precision
QRectFDefines a rectangle in the plane using floating point precision
QRegExpPattern matching using regular expressions
QRegExpValidatorUsed to check a string against a regular expression
QRegionClip region for a painter
QResizeEventEvent parameters for resize events
QResourceInterface for reading directly from resources
QRubberBandRectangle or line that can indicate a selection or a boundary
QScrollAreaScrolling view onto another widget
QScrollBarVertical or horizontal scroll bar
QSemaphoreGeneral counting semaphore
QSessionManagerAccess to the session manager
QSettingsPersistent platform-independent application settings
QSharedDataBase class for shared data objects
QSharedDataPointer< T >The QSharedDataPointer class provides a pointer to a shared data object
QShortcutUsed to create keyboard shortcuts
QShortcutEventEvent which is generated when the user presses a key combination
QShowEventEvent that is sent when a widget is shown
QSignalMapperBundles signals from identifiable senders
QSizeDefines the size of a two-dimensional object using integer point precision
QSizeFDefines the size of a two-dimensional object using floating point precision
QSizeGripCorner-grip for resizing a top-level window
QSliderVertical or horizontal slider
QSocketNotifierSupport for monitoring activity on a file descriptor
QSortFilterProxyModelSupport for sorting and filtering data passed between another model and a view
QSoundAccess to the platform audio facilities
QSpacerItemBlank space in a layout
QSpinBoxSpin box widget
QSplashScreenSplash screen that can be shown during application startup
QSplitterImplements a splitter widget
QSplitterHandleHandle functionality of the splitter
QSqlDatabaseConnection to a database
QSqlDriverAbstract base class for accessing specific SQL databases
QSqlDriverCreator< T >The QSqlDriverCreator class is a template class that provides a SQL driver factory for a specific driver type
QSqlDriverCreatorBaseBase class for SQL driver factories
QSqlDriverPluginAbstract base for custom QSqlDriver plugins
QSqlErrorSQL database error information
QSqlFieldManipulates the fields in SQL database tables and views
QSqlIndexFunctions to manipulate and describe database indexes
QSqlQueryMeans of executing and manipulating SQL statements
QSqlQueryModelRead-only data model for SQL result sets
QSqlRecordEncapsulates a database record
QSqlRelationStores information about an SQL foreign key
QSqlRelationalDelegateDelegate that is used to display and edit data from a QSqlRelationalTableModel
QSqlRelationalTableModelEditable data model for a single database table, with foreign key support
QSqlResultAbstract interface for accessing data from specific SQL databases
QSqlTableModelEditable data model for a single database table
QStack< T >The QStack class is a template class that provides a stack
QStackedLayoutStack of widgets where only one widget is visible at a time
QStackedWidgetStack of widgets where only one widget is visible at a time
QStandardItemItem for use with the QStandardItemModel class
QStandardItemEditorCreator< T >The QStandardItemEditorCreator class provides the possibility to register widgets without having to subclass QItemEditorCreatorBase
QStandardItemModelGeneric model for storing custom data.
  • QStandardItemModel can be used as a repository for standard Qt data types. It is one of the {Model/View Classes} and is part of Qt's {Model/View Programming}{model/view} framework
QStatusBarHorizontal bar suitable for presenting status information
QStatusTipEventEvent that is used to show messages in a status bar
QStringUnicode character string
QStringListList of strings
QStringListModelModel that supplies strings to views
QStringMatcherHolds a sequence of characters that can be quickly matched in a Unicode string
QStyleAbstract base class that encapsulates the look and feel of a GUI
QStyleFactoryCreates QStyle objects
QStyleHintReturnExposed rectangle, in item coordinates
QStyleHintReturnMaskStyle hints that return a QRegion
QStyleOptionStores the parameters used by QStyle functions
QStyleOptionButtonUsed to describe the parameters for drawing buttons
QStyleOptionComboBoxOR combination of the tool button's features
QStyleOptionComplexType of menu item
QStyleOptionDockWidgetWhether the dock window is currently docked
QStyleOptionFocusRectPalette that should be used when painting the control
QStyleOptionFrameBackground color on which the focus rectangle is being drawn
QStyleOptionFrameV2Line width for drawing the frame
QStyleOptionGraphicsItemUsed to describe the parameters needed to draw a QGraphicsItem
QStyleOptionGroupBoxDescribes the parameters for drawing a group box
QStyleOptionHeaderUsed to describe the parameters for drawing a header
QStyleOptionMenuItemUsed to describe the parameter necessary for drawing a menu item
QStyleOptionProgressBarUsed to describe the parameters necessary for drawing a progress bar
QStyleOptionProgressBarV2Minimum value for the progress bar
QStyleOptionQ3DockWindowList of items in the Q3ListView
QStyleOptionQ3ListViewFeatures for this item
QStyleOptionQ3ListViewItemType of button symbols to draw for the spin box
QStyleOptionRubberBandIcon for the tool box tab
QStyleOptionSizeGripShape of the tabbar
QStyleOptionSliderBitwise OR of the various sub-controls that need to be drawn for the complex control
QStyleOptionSpinBoxSlider's orientation (horizontal or vertical)
QStyleOptionTabUsed to describe the parameters for drawing a tab bar
QStyleOptionTabBarBaseLine width for drawing the panel
QStyleOptionTabV2Position of the selected tab in relation to this tab
QStyleOptionTabWidgetFrameUsed to describe the parameters for drawing the frame around a tab widget
QStyleOptionTitleBarShape of the rubber band
QStyleOptionToolBarBitwise OR of the features that describe this button
QStyleOptionToolBoxWhether or not the combobox is editable or not
QStyleOptionToolButtonTitle of the dock window
QStyleOptionViewItemText of the title bar
QStyleOptionViewItemV2Used to describe the parameters necessary for drawing a frame in Qt 4.2 or above
QStylePainterConvenience class for drawing QStyle elements inside a widget
QStylePluginAbstract base for custom QStyle plugins
QSvgRendererUsed to draw the contents of SVG files onto paint devices
QSvgWidgetWidget that is used to display the contents of Scalable Vector Graphics (SVG) files
QSyntaxHighlighterAllows you to define syntax highlighting rules, and in addition you can use the class to query a document's current formatting or user data
QSysInfoInformation about the system
QSystemLocaleCan be used to finetune the system locale of the user
QSystemTrayIconIcon for an application in the system tray
QTabBarTab bar, e.g. for use in tabbed dialogs
QTabletEventParameters that describe a Tablet event
QTableViewDefault model/view implementation of a table view
QTableWidgetItem-based table view with a default model
QTableWidgetItemItem for use with the QTableWidget class
QTableWidgetSelectionRangeContainer for storing a selection range in a QTableWidget
QTabWidgetStack of tabbed widgets
QTcpServerTCP-based server
QTcpSocketTCP socket
QTemporaryFileI/O device that operates on temporary files
QTextBlockContainer for text fragments in a QTextDocument
QTextBlock::iteratorThe QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock
QTextBlockFormatFormatting information for blocks of text in a QTextDocument
QTextBlockGroupContainer for text blocks within a QTextDocument
QTextBlockUserDataUsed to associate custom data with blocks of text
QTextBrowserRich text browser with hypertext navigation
QTextCharFormatFormatting information for characters in a QTextDocument
QTextCodecConversions between text encodings.

Qt uses Unicode to store, draw and manipulate strings. In many situations you may wish to deal with data that uses a different encoding. For example, most Japanese documents are still stored in Shift-JIS or ISO 2022-JP, while Russian users often have their documents in KOI8-R or Windows-1251

QTextCodecPluginAbstract base for custom QTextCodec plugins.

The text codec plugin is a simple plugin interface that makes it easy to create custom text codecs that can be loaded dynamically into applications

QTextCursorOffers an API to access and modify QTextDocuments
QTextDecoderState-based decoder.

A text decoder converts text from an encoded text format into Unicode using a specific codec

QTextDocumentHolds formatted text that can be viewed and edited using a QTextEdit
QTextDocumentFragmentPiece of formatted text from a QTextDocument
QTextEditWidget that is used to edit and display both plain and rich text
QTextEdit::ExtraSelectionThe QTextEdit::ExtraSelection structure provides a way of specifying a character format for a given selection in a document
QTextEncoderState-based encoder.

A text encoder converts text from Unicode into an encoded text format using a specific codec

QTextFormatFormatting information for a QTextDocument
QTextFragmentHolds a piece of text in a QTextDocument with a single QTextCharFormat
QTextFrameFrame in a QTextDocument
QTextFrame::iteratorThe QTextFrame::iterator class provides an iterator for reading the contents of a QTextFrame
QTextFrameFormatFormatting information for frames in a QTextDocument
QTextImageFormatFormatting information for images in a QTextDocument
QTextInlineObjectInline object in a QTextLayout
QTextLayoutUsed to lay out and paint a single paragraph of text
QTextLayout::FormatRangeThe QTextLayout::FormatRange structure is used to apply extra formatting information for a specified area in the text layout's content
QTextLengthEncapsulates the different types of length used in a QTextDocument
QTextLineLine of text inside a QTextLayout
QTextListDecorated list of items in a QTextDocument
QTextListFormatFormatting information for lists in a QTextDocument
QTextObjectBase class for different kinds of objects that can group parts of a QTextDocument together
QTextOptionDescription of general rich text properties
QTextStreamConvenient interface for reading and writing text
QTextTableTable in a QTextDocument
QTextTableCellProperties of a cell in a QTextTable
QTextTableFormatFormatting information for tables in a QTextDocument
QThreadPlatform-independent threads
QThreadStorage< T >The QThreadStorage class provides per-thread data storage
QTimeClock time functions
QTimeEditWidget for editing times based on the QDateTimeEdit widget
QTimeLineTimeline for controlling animations
QTimerRepetitive and single-shot timers
QTimerEventParameters that describe a timer event
QToolBarMovable panel that contains a set of controls
QToolBarChangeEventEvent that is sent whenever a the toolbar button is clicked on Mac OS X
QToolBoxColumn of tabbed widget items
QToolButtonQuick-access button to commands or options, usually used inside a QToolBar
QToolTipTooltips (balloon help) for any widget
QTranslatorInternationalization support for text output
QTreeViewDefault model/view implementation of a tree view
QTreeWidgetTree view that uses a predefined tree model
QTreeWidgetItemItem for use with the QTreeWidget convenience class
QTreeWidgetItemIteratorWay to iterate over the items in a QTreeWidget instance
QtWindowListMenuMenu that displays the names of the windows in a QWorkspace
QUdpSocketUDP socket
QUiLoaderAllows standalone applications dynamically create user interfaces at run-time using the information stored in .ui files or specified plugin paths
QUndoCommandBase class of all commands stored on a QUndoStack
QUndoGroupGroup of QUndoStack objects
QUndoStackStack of QUndoCommand objects
QUndoViewDisplays the contents of a QUndoStack
QUrlConvenient interface for working with URLs
QUrlInfoStores information about URLs
QUuidStores a Universally Unique Identifier (UUID)
QValidatorValidation of input text
QVariantActs like a union for the most common Qt data types
QVBoxLayoutLines up widgets vertically
QVector< T >The QVector class is a template class that provides a dynamic array
QWaitConditionCondition variable for synchronizing threads
QWhatsThisSimple description of any widget, i.e. answering the question "What's This?"
QWhatsThisClickedEventEvent that can be used to handle hyperlinks in a "What's This?" text
QWheelEventParameters that describe a wheel event
QWidgetBase class of all user interface objects
QWidgetActionExtends QAction by an interface for inserting custom widgets into action based containers, such as toolbars
QWidgetItemLayout item that represents a widget
QWindowsStyleMicrosoft Windows-like look and feel
QWindowStateChangeEventWindow state before a window state change
QWindowsXPStyleMicrosoft WindowsXP-like look and feel
QWorkspaceWorkspace window that can be used in an MDI application.

Multiple Document Interface (MDI) applications are typically composed of a main window containing a menu bar, a toolbar, and a central QWorkspace widget. The workspace itself is used to display a number of child windows, each of which is a widget

QWriteLockerConvenience class that simplifies locking and unlocking read-write locks for write access
QX11EmbedContainerXEmbed container widget
QX11EmbedWidgetXEmbed client widget
QX11InfoInformation about the X display configuration
QXmlAttributesXML attributes
QXmlContentHandlerInterface to report the logical content of XML data
QXmlDeclHandlerInterface to report declaration content of XML data
QXmlDefaultHandlerDefault implementation of all the XML handler classes
QXmlDTDHandlerInterface to report DTD content of XML data
QXmlEntityResolverInterface to resolve external entities contained in XML data
QXmlErrorHandlerInterface to report errors in XML data
QXmlInputSourceInput data for the QXmlReader subclasses
QXmlLexicalHandlerInterface to report the lexical content of XML data
QXmlLocatorXML handler classes with information about the parsing position within a file
QXmlNamespaceSupportHelper class for XML readers which want to include namespace support
QXmlParseExceptionUsed to report errors with the QXmlErrorHandler interface
QXmlReaderInterface for XML readers (i.e. parsers)
QXmlSimpleReaderImplementation of a simple XML parser
sources::SourceBlockSOURCE BLOCK CLASS
sources::SourceBlockFormatBLOCK FORMAT PATTERN
sources::SourceProcessorSOURCE PROCESSOR CLASS

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