# QtGui Classes

QAbstractButton | The abstract base class of button widgets, providing functionality common to buttons
QAbstractItemDelegate | Used to display and edit data items from a model
QAbstractItemView | The basic functionality for item view classes
QAbstractScrollArea | Scrolling area with on-demand scroll bars
QAbstractSlider | Integer value within a range
QAbstractSpinBox | Spinwidget and a line edit to display values
QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments
QAccessible | Enums and static functions relating to accessibility
QAccessibleInterface | Defines an interface that exposes information about accessible objects
QAccessibleObject | Implements parts of the QAccessibleInterface for QObjects
QAccessiblePlugin | Abstract base for accessibility plugins
QAccessibleWidget | Implements the QAccessibleInterface for QWidgets
QAction | Abstract user interface action that can be inserted into widgets with QWidget::addAction()
QActionGroup | Groups actions together
QApplication | Manages the GUI application's control flow and main settings
QBitmap | Monochrome (1-bit depth) pixmaps
QBoxLayout | Lines up child widgets horizontally or vertically
QBrush | Defines the fill pattern of shapes drawn by a QPainter
QButtonGroup | Container to organize groups of button widgets
QCDEStyle | CDE look and feel
QCheckBox | Checkbox with a text label
QClipboard | Access to the window system clipboard
QCloseEvent | Parameters that describe a close event
QColor | Colors based on RGB or HSV values
QColorDialog | Dialog widget for specifying colors
QColorGroup
QComboBox | Combined button and popup list
QCommonStyle | Encapsulates the common Look and Feel of a GUI
QConicalGradient | Used in combination with QBrush to specify a conical gradient brush
QContextMenuEvent | Parameters that describe a context menu event
QCopChannel | Communication capabilities between several clients
QCursor | Mouse cursor with an arbitrary shape
QDateTimeEdit | Widget for editing dates and times
QDecoration | Allows the appearance of the Qtopia Core Window Manager to be customized
QDecorationFactory | Creates QDecoration objects
QDecorationPlugin | Abstract base for custom QDecoration plugins
QDesktopWidget | Access to screen information on multi-head systems
QDial | Rounded range control (like a speedometer or potentiometer)
QDialog | The base class of dialog windows
QDirModel | Data model for the local filesystem
QDirectPainter | Direct access to the video hardware
QDockWidget | Widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop
QDoubleSpinBox | Spin box widget that takes doubles
QDoubleValidator | Range checking of floating-point numbers
QDrag | Support for MIME-based drag and drop data transfer
QDragEnterEvent | Event which is sent to a widget when a drag and drop action enters it
QDragLeaveEvent | Event that is sent to a widget when a drag and drop action leaves it
QDragMoveEvent | Event which is sent while a drag and drop action is in progress
QDropEvent | Event which is sent when a drag and drop action is completed
QErrorMessage | Error message display dialog
QFileDialog | Dialog that allow users to select files or directories
QFileIconProvider | File icon for the QDirModel class
QFileOpenEvent | Event that will be sent when there is a request to open a file
QFocusEvent | Event parameters for widget focus events
QFocusFrame | Focus frame which can be outside of a widget's normal paintable area
QFont | Font used for drawing text
QFontDatabase | Information about the fonts available in the underlying window system
QFontDialog | Dialog widget for selecting a font
QFontInfo | General information about fonts
QFontMetrics | Font metrics information
QFontMetricsF | Font metrics information
QFrame | The base class of widgets that can have a frame
QGfxDriverFactory | Creates QScreen objects for Qtopia Core
QGfxDriverPlugin | Abstract base for Qtopia Core graphics driver plugins
QGradient | Used in combination with QBrush to specify gradient fills
QGridLayout | Lays out widgets in a grid
QGridWidget | Simple geometry management of its children
QGroupBox | Group box frame with a title
QHBoxLayout | Lines up widgets horizontally
QHBoxWidget | Horizontal geometry management for its child widgets
QHeaderView | Header row or header column for item views
QHideEvent | Event which is sent after a widget is hidden
QHoverEvent | Parameters that describe a mouse event
QIcon | Scalable icons in different modes and states
QIconDragEvent | Indicates that a main icon drag has begun
QIconEngine | Abstract base class for QIcon renderers
QIconEnginePlugin | Abstract base for custom QIconEngine plugins
QImage | Hardware-independent pixmap that allows direct access to the pixel data, and can be used as a paint device
QImageIOHandler | Defines the common image I/O interface for all image formats in Qt
QImageIOHandlerFactoryInterface | The factory interface for QImageIOPlugin
QImageIOPlugin | Defines an interface for writing an image format plugin
QImageReader | Format independent interface for reading images from files or other devices
QImageWriter | Format independent interface for writing images to files or other devices
QInputContext | Abstracts the input method dependent data and composing state
QInputContextPlugin | Abstract base for custom QInputContext plugins
QInputDialog | Simple convenience dialog to get a single value from the user
QInputEvent | The base class for events that describe user input
QInputMethodEvent | Parameters for input method events
QIntValidator | Validator that ensures a string contains a valid integer within a specified range
QItemDelegate | Display and editing facilities for data items from a model
QItemSelection | Manages information about selected items in a model
QItemSelectionModel | Keeps track of a view's selected items
QItemSelectionRange | Manages information about a range of selected items in a model
QKbdDriverFactory | Creates QWSKeyboardHandler objects for Qtopia Core
QKbdDriverPlugin | Abstract base for Qtopia Core keyboard driver plugins
QKeyEvent | Describes a key event
QKeySequence | Encapsulates a key sequence as used by shortcuts
QLCDNumber | Displays a number with LCD-like digits
QLabel | Text or image display
QLayout | The base class of geometry managers
QLayoutItem | Abstract item that a QLayout manipulates
QLineEdit | One-line text editor
QLinearGradient | Used in combination with QBrush to specify a linear gradient brush
QListView | Default model/view implementation of a list, and of an icon view
QListWidget | Item-based list widget
QListWidgetItem | Item for use with the QListWidget item view class
QMacMime | Maps open-standard MIME to Mac flavors
QMacStyle | Implements an Appearance Manager style
QMainWindow | Main application window
QMatrix | 2D transformations of a coordinate system
QMenu | Menu widget for use in menu bars, context menus, and other popup menus
QMenuBar | Horizontal menu bar
QMenuItem | Represents an item in a menu
QMessageBox | Modal dialog with a short message, an icon, and some buttons
QMotifPlusStyle | More sophisticated Motif-ish look and feel
QMotifStyle | Motif look and feel
QMouseDriverFactory | Creates QWSMouseHandler objects for Qtopia Core
QMouseDriverPlugin | Abstract base for Qtopia Core mouse driver plugins
QMouseEvent | Parameters that describe a mouse event
QMoveEvent | Event parameters for move events
QMovie | Convenience class for playing movies with QImageReader
QPaintDevice | The base class of objects that can be painted
QPaintEngine | Abstract definition of how QPainter draws to a given device on a given platform
QPaintEvent | Event parameters for paint events
QPainter | Does low-level painting e.g. on widgets
QPainterPath | Container for painting operations, enabling graphical shapes to be constructed and reused
QPalette | Color groups for each widget state
QPen | Defines how a QPainter should draw lines and outlines of shapes
QPicture | Paint device that records and replays QPainter commands
QPictureFormatPlugin | Abstract base for custom picture format plugins
QPictureIO | Parameters for loading and saving pictures
QPixmap | Off-screen, pixel-based paint device
QPixmapCache | Application-wide cache for pixmaps
QPlatinumStyle | Mac/Platinum look and feel
QPolygon | Vector of points
QPolygonF | Vector of points
QPrintEngine | Defines an interface for how QPrinter interacts with a given printing subsystem
QPrinter | Paint device that paints on a printer
QProgressBar | Horizontal progress bar
QProgressDialog | Feedback on the progress of a slow operation
QProxyModel | Support for filtering and sorting data that is passed between another model and a view
QPushButton | Command button
QRadialGradient | Used in combination with QBrush to specify a radial gradient brush
QRadioButton | Radio button with a text label
QRegExpValidator | Used to check a string against a regular expression
QRegion | Clip region for a painter
QResizeEvent | Event parameters for resize events
QRubberBand | Rectangle or line that can indicate a selection or a boundary
QSGIStyle | SGI/Irix look and feel
QScreen | And its descendants manage the framebuffer and palette
QScrollArea | Scrolling view onto another widget
QScrollBar | Vertical or horizontal scroll bar
QSessionManager | Access to the session manager
QShortcut | Used to create keyboard shortcuts
QShowEvent | Event that is sent when a widget is shown
QSizeGrip | Corner-grip for resizing a top-level window
QSizePolicy | Layout attribute describing horizontal and vertical resizing policy
QSlider | Vertical or horizontal slider
QSound | Access to the platform audio facilities
QSpacerItem | Blank space in a layout
QSpinBox | Spin box widget
QSplashScreen | Splash screen that can be shown during application startup
QSplitter | Implements a splitter widget
QSplitterHandle | Handle functionality of the splitter
QStackedLayout | Stack of widgets where only one widget is visible at a time
QStackedWidget | Stack of widgets where only one widget is visible at a time
QStandardItemModel
QStatusBar | Horizontal bar suitable for presenting status information
QStyle | Abstract base class that encapsulates the look and feel of a GUI
QStyleFactory | Creates QStyle objects
QStyleHintReturn
QStyleOption | Stores the parameters used by QStyle functions
QStyleOptionButton | Used to describe the parameters for drawing buttons
QStyleOptionComboBox | Used to describe the parameter for drawing a combobox
QStyleOptionComplex | Used to hold parameters that are common to all complex controls
QStyleOptionDockWidget | Used to describe the parameters for drawing a dock window
QStyleOptionFocusRect | Used to describe the parameters for drawing a focus rectangle with QStyle
QStyleOptionFrame | Used to describe the parameters for drawing a frame
QStyleOptionHeader | Used to describe the parameters for drawing a header
QStyleOptionMenuItem | Used to describe the parameter necessary for drawing a menu item
QStyleOptionProgressBar | Used to describe the parameters necessary for drawing a progress bar
QStyleOptionQ3DockWindow | Used to describe the parameters for drawing various parts of a
QStyleOptionQ3ListView | Used to describe the parameters for drawing a Q3ListView
QStyleOptionQ3ListViewItem | Used to describe an item drawn in a Q3ListView
QStyleOptionSlider | Used to describe the parameters needed for drawing a slider
QStyleOptionSpinBox | Used to describe the parameters necessary for drawing a spin box
QStyleOptionTab | Used to describe the parameters for drawing a tab bar
QStyleOptionTitleBar | Used to describe the parameters for drawing a title bar
QStyleOptionToolBox | Used to describe the parameters needed for drawing a tool box
QStyleOptionToolButton | Used to describe the parameters for drawing a tool button
QStyleOptionViewItem | Used to describe the parameters used to draw an item in a view widget
QStylePainter | Convenience class for drawing QStyle elements inside a widget
QStylePlugin | Abstract base for custom QStyle plugins
QTabBar | Tab bar, e.g. for use in tabbed dialogs
QTabWidget | Stack of tabbed widgets
QTableView | Default model/view implementation of a table view
QTableWidget | Item-based table view with a default model
QTableWidgetItem | Item for use with the QTableWidget class
QTableWidgetSelectionRange
QTabletEvent | Parameters that describe a Tablet event
QTextBlock | Container for text fragments in a QTextDocument
QTextBlockFormat | Formatting information for blocks of text in a QTextDocument
QTextBlockGroup | Container for text blocks within a QTextDocument
QTextBrowser | Rich text browser with hypertext navigation
QTextCharFormat | Formatting information for characters in a QTextDocument
QTextCursor | Offers an API to access and modify QTextDocuments
QTextDocument | Holds formatted text that can be viewed and edited using a QTextEdit
QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument
QTextEdit | Widget that is used to edit and display both plain and rich text
QTextFormat | Formatting information for a QTextDocument
QTextFragment | Holds a piece of text in a QTextDocument with a single QTextCharFormat
QTextFrame | Represents a frame in a QTextDocument
QTextFrameFormat | Formatting information for frames in a QTextDocument
QTextImageFormat | Formatting information for images in a QTextDocument
QTextInlineObject | Represents an inline object in a QTextLayout
QTextLayout | Used to lay out and paint a single paragraph of text
QTextLength | Encapsulates the different types of length used in a QTextDocument
QTextLine | Represents a line of text inside a QTextLayout
QTextList | Decorated list of items in a QTextDocument
QTextListFormat | Formatting information for lists in a QTextDocument
QTextObject | Base class for different kinds of objects that can group parts of a QTextDocument together
QTextOption | Description of general rich text properties
QTextTable | Represents a table in a QTextDocument
QTextTableCell | Represents the properties of a cell in a QTextTable
QTextTableFormat | Formatting information for tables in a QTextDocument
QToolBar | Movable panel that contains a set of controls
QToolBarChangeEvent | Event that is sent whenever a the toolbar button is clicked on OS X
QToolBox | Column of tabbed widget items
QToolButton | Quick-access button to commands or options, usually used inside a QToolBar
QToolTip | Tool tips (balloon help) for any widget
QTreeView | Default model/view implementation of a tree view
QTreeWidget | Tree view that uses a predefined tree model
QTreeWidgetItem | Item for use with the QTreeWidget convenience class
QVBoxLayout | Lines up widgets vertically
QVBoxWidget | Vertical geometry management of its child widgets
QValidator | Validation of input text
QWSInputMethod | International input methods for Qtopia Core
QWSKeyboardHandler | Implements the keyboard driver for Qtopia Core
QWSMouseHandler | Mouse driver for Qtopia Core
QWSServer | Server-specific functionality in Qtopia Core
QWSWindow | Server-specific functionality in Qtopia Core
QWhatsThis | Simple description of any widget, i.e. answering the question "What's this?"
QWhatsThisAction | Ready-made action to invoke "What's This" context help
QWheelEvent | Parameters that describe a wheel event
QWidget | The base class of all user interface objects
QWidgetContainerPlugin | Abstract base for complex custom container QWidget plugins
QWidgetItem | Layout item that represents a widget
QWidgetPlugin | Abstract base for custom QWidget plugins
QWindowsMime | Maps open-standard MIME to Window Clipboard formats
QWindowsStyle | Microsoft Windows-like look and feel
QWindowsXPStyle | Microsoft WindowsXP-like look and feel
QWorkspace | Workspace window that be used in an MDI application
QX11Info | Information about the X display configuration