QAbstractButton | The abstract base class of button widgets, providing functionality common to buttons
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QAbstractItemDelegate | Used to display and edit data items from a model
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QAbstractItemModel | The abstract interface for item model classes
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QAbstractItemView | The basic functionality for item view classes
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QAbstractListModel | Abstract model that can be subclassed to create one-dimensional list models
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QAbstractSlider | Integer value within a range
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QAbstractSocket | The base functionality common to all socket types
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QAbstractSpinBox | Spinwidget and a lineedit to display values
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QAbstractTableModel | Abstract model that can be subclassed to create table models
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QAbstractTextDocumentLayout | Abstract base class used to implement custom layouts for QTextDocuments
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QAccessible | Enums and static functions relating to accessibility
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QAccessibleButton | Implements the QAccessibleInterface for button type widgets
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QAccessibleComboBox | Implements the QAccessibleInterface for editable and read-only combo boxes
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QAccessibleDisplay | Implements the QAccessibleInterface for widgets that display information
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QAccessibleHeader | Implements the QAccessibleInterface for header widgets
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QAccessibleIconView | Implements the QAccessibleInterface for icon views
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QAccessibleInterface | Defines an interface that exposes information about accessible objects
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QAccessibleLineEdit | Implements the QAccessibleInterface for widgets with editable text
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QAccessibleListBox | Implements the QAccessibleInterface for list boxes
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QAccessibleListView | Implements the QAccessibleInterface for list views
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QAccessibleObject | Implements parts of the QAccessibleInterface for QObjects
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QAccessiblePlugin | Abstract base for accessibility plugins
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QAccessibleScrollBar | Implements the QAccessibleInterface for scroll bars
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QAccessibleScrollView | Implements the QAccessibleInterface for scrolled widgets
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QAccessibleSlider | Implements the QAccessibleInterface for sliders
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QAccessibleSpinBox | Implements the QAccessibleInterface for spinbox widgets
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QAccessibleTabBar | Implements the QAccessibleInterface for tab bars
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QAccessibleTextEdit | Implements the QAccessibleInterface for richtext editors
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QAccessibleTitleBar | Implements the QAccessibleInterface for title bars
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QAccessibleToolButton | Implements the QAccessibleInterface for tool buttons
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QAccessibleWidget | Implements the QAccessibleInterface for QWidgets
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QAccessibleWidgetStack | Implements the QAccessibleInterface for widget stacks
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QAction | Abstract user interface action that can be inserted into widgets with QWidget::addAction()
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QActionGroup | Groups actions together
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QApplication | Manages the GUI application's control flow and main settings
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QBasicTimer | Timer events for QObjects
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QBig5Codec | Conversion to and from the Big5 encoding
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QBig5hkscsCodec | Conversion to and from the Big5-HKSCS encoding
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QBitArray | Array of bits
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QBitmap | Monochrome (1-bit depth) pixmaps
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QBoxLayout | Lines up child widgets horizontally or vertically
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QBrush | Defines the fill pattern of shapes drawn by a QPainter
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QBuffer | I/O device that operates on a QByteArray
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QButtonGroup | Container to organize groups of button widgets
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QByteArray | Array of bytes
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QByteArrayMatcher | Holds a sequence of bytes that can be quickly matched in a byte array
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QCDEStyle | CDE look and feel
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QCache | Template class that provides a cache
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QChar | 16-bit Unicode character
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QCheckBox | Checkbox with a text label
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QChildEvent | Event parameters for child object events
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QClipboard | Access to the window system clipboard
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QCloseEvent | Parameters that describe a close event
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QColor | Colors based on RGB or HSV values
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QColorDialog | Dialog widget for specifying colors
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QColorDrag | Drag and drop object for transferring colors between widgets
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QComboBox | Combined button and popup list
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QCommonStyle | Encapsulates the common Look and Feel of a GUI
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QContextMenuEvent | Parameters that describe a context menu event
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QCopChannel | Communication capabilities between several clients
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QCoreApplication | Event loop for Qt applications
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QCoreSettings | Persistent platform-independent application settings
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QCoreVariant | Acts like a union for the most common Qt data types
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QCursor | Mouse cursor with an arbitrary shape
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QCustomEvent | Support for custom events
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QDataStream | Serialization of binary data to a QIODevice
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QDate | Date functions
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QDateTime | Date and time functions
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QDateTimeEdit | Widget for editing dates and times
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QDecoration | Allows the appearance of the Qt/Embedded Window Manager to be customized
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QDecorationFactory | Creates QDecoration objects
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QDecorationPlugin | Abstract base for custom QDecoration plugins
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QDesktopWidget | Access to screen information on multi-head systems
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QDial | Rounded range control (like a speedometer or potentiometer)
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QDialog | The base class of dialog windows
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QDir | Access to directory structures and their contents
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QDirModel | Data model for the local filesystem
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QDirectPainter | Direct access to the video hardware
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QDns | Static functions for host name lookups
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QDnsHostInfo | Information about a host name lookup
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QDockWindow | Widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop
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QDomAttr | Represents one attribute of a QDomElement
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QDomCDATASection | Represents an XML CDATA section
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QDomCharacterData | Represents a generic string in the DOM
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QDomComment | Represents an XML comment
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QDomDocument | Represents an XML document
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QDomDocumentFragment | Tree of QDomNodes which is not usually a complete QDomDocument
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QDomDocumentType | The representation of the DTD in the document tree
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QDomElement | Represents one element in the DOM tree
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QDomEntity | Represents an XML entity
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QDomEntityReference | Represents an XML entity reference
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QDomImplementation | Information about the features of the DOM implementation
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QDomNamedNodeMap | Collection of nodes that can be accessed by name
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QDomNode | The base class for all the nodes in a DOM tree
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QDomNodeList | List of QDomNode objects
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QDomNotation | Represents an XML notation
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QDomProcessingInstruction | Represents an XML processing instruction
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QDomText | Represents text data in the parsed XML document
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QDoubleSpinBox | Spin box widget that takes doubles
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QDoubleValidator | Range checking of floating-point numbers
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QDragEnterEvent | Event which is sent to a widget when a drag and drop action enters it
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QDragLeaveEvent | Event that is sent to a widget when a drag and drop action leaves it
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QDragMoveEvent | Event which is sent while a drag and drop action is in progress
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QDragObject | Encapsulates MIME-based data transfer
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QDropEvent | Event which is sent when a drag and drop action is completed
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QErrorMessage | Error message display dialog
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QEucJpCodec | Conversion to and from EUC-JP character sets
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QEucKrCodec | Conversion to and from EUC-KR character sets
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QEvent | The base class of all event classes. Event objects contain event parameters
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QEventLoop | Manages Qt's event queue, excluding GUI-related events
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QFile | I/O device that operates on files
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QFileDialog | Dialog that allow users to select files or directories
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QFileEngine | Abstraction for accessing the filesystem
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QFileEngineHandler | Allows custom QFileEngines to be plugged into Qt
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QFileIconProvider | File icon for the QDirModel class
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QFileInfo | System-independent file information
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QFileOpenEvent | Event that will be sent when there is a request to open a file
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QFocusEvent | Event parameters for widget focus events
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QFont | Font used for drawing text
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QFontDatabase | Information about the fonts available in the underlying window system
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QFontDialog | Dialog widget for selecting a font
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QFontInfo | General information about fonts
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QFontMetrics | Font metrics information
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QFrame | The base class of widgets that can have a frame
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QFtp | Implementation of the FTP protocol
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QGL | Namespace for miscellaneous identifiers in the Qt OpenGL module
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QGLColormap | Used for installing custom colormaps into QGLWidgets
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QGLContext | Encapsulates an OpenGL rendering context
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QGLFormat | The display format of an OpenGL rendering context
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QGLWidget | Widget for rendering OpenGL graphics
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QGb18030Codec | Conversion to and from the Chinese GB18030/GBK/GB2312 encoding
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QGb2312Codec | Conversion to and from the Chinese GB2312 encoding
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QGbkCodec | Conversion to and from the Chinese GBK encoding
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QGfxDriverFactory | Creates QScreen objects for Qt/Embedded
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QGfxDriverPlugin | Abstract base for Qt/Embedded graphics driver plugins
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QGridLayout | Lays out widgets in a grid
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QGridWidget | Simple geometry management of its children
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QGroupBox | Group box frame with a title
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QGuiEventLoop | Manages Qt's event queue, including GUI-related events
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QHBoxLayout | Lines up widgets horizontally
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QHBoxWidget | Horizontal geometry management for its child widgets
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QHash | Template class that provides a hash-table-based dictionary
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QHashIterator | Java-style const iterator for QHash and QMultiHash
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QHashMutableIterator | Java-style non-const iterator for QHash and QMultiHash
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QHeaderView | Header row or header column for item views
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QHideEvent | Event which is sent after a widget is hidden
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QHostAddress | IP address
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QHttp | Implementation of the HTTP protocol
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QHttpHeader | Header information for HTTP
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QHttpRequestHeader | Request header information for HTTP
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QHttpResponseHeader | Response header information for HTTP
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QIMEvent | Parameters for input method events
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QIODevice | The base class of I/O devices
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QIcon | Different versions of an icon
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QIconDragEvent | Indicates that a main icon drag has begun
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QImage | Hardware-independent pixmap representation with direct access to the pixel data
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QImageConsumer | Abstraction used by QImageDecoder
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QImageDecoder | Incremental image decoder for all supported image formats
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QImageDrag | Drag and drop object for transferring images
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QImageFormat | Incremental image decoder for a specific image format
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QImageFormatPlugin | Abstract base for custom image format plugins
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QImageFormatType | Factory that makes QImageFormat objects
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QImageIO | Parameters for loading and saving images
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QInputDialog | Simple convenience dialog to get a single value from the user
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QInputEvent | The base class for events that describe user input
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QIntValidator | Validator that ensures a string contains a valid integer within a specified range
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QItemDelegate | Display and editing facilities for data items from a model
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QItemSelection | Manages information about selected items in a model
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QItemSelectionModel | Keeps track of a view's selected items
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QItemSelectionRange | Manages information about a range of selected items in a model
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QJisCodec | Conversion to and from JIS character sets
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QKbdDriverFactory | Creates QWSKeyboardHandler objects for Qt/Embedded
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QKbdDriverPlugin | Abstract base for Qt/Embedded keyboard driver plugins
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QKeyEvent | Describes a key event
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QKeySequence | Encapsulates a key sequence as used by shortcuts
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QLCDNumber | Displays a number with LCD-like digits
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QLabel | Text or image display
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QLatin1String | Thin wrapper around an ASCII/Latin-1 encoded string literal
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QLayout | The base class of geometry managers
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QLayoutItem | Abstract item that a QLayout manipulates
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QLibrary | Loads shared libraries at runtime
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QLineEdit | One-line text editor
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QLineF | Two-dimensional vector that uses floating point coordinates for accuracy
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QLinkedList | Template class that provides linked lists
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QLinkedListIterator | Java-style const iterator for QLinkedList
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QLinkedListMutableIterator | Java-style non-const iterator for QLinkedList
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QList | Template class that provides lists
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QListIterator | Java-style const iterator for QList and QQueue
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QListMutableIterator | Java-style non-const iterator for QList and QQueue
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QListView | Default model/view implementation of a list, and of an icon view
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QListWidget | Item-based list widget
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QListWidgetItem | Item for use with the QListWidget item view class
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QLocale | Converts between numbers and their string representations in various languages
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QMacMime | Maps open-standard MIME to Mac flavors
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QMacStyle | Implements an Appearance Manager style
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QMainWindow | Main application window
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QMap | Template class that provides a skip-list-based dictionary
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QMapIterator | Java-style const iterator for QMap and QMultiMap
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QMapMutableIterator | Java-style non-const iterator for QMap and QMultiMap
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QMatrix | 2D transformations of a coordinate system
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QMenu | Menu widget for use in menu bars, context menus, and other popup menus
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QMenuBar | Horizontal menu bar
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QMessageBox | Modal dialog with a short message, an icon, and some buttons
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QMetaClassInfo | Additional information about a class
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QMetaEnum | Meta data about an enumerator
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QMetaMember | Meta data about a member function
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QMetaObject | Meta information about Qt objects
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QMetaProperty | Meta data about a property
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QMimeSource | Abstraction of objects which provide formatted data of a certain MIME type
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QModelIndex | Used to locate data in a data model
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QMotifPlusStyle | More sophisticated Motif-ish look and feel
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QMotifStyle | Motif look and feel
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QMouseDriverFactory | Creates QWSMouseHandler objects for Qt/Embedded
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QMouseDriverPlugin | Abstract base for Qt/Embedded mouse driver plugins
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QMouseEvent | Parameters that describe a mouse event
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QMoveEvent | Event parameters for move events
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QMovie | Incremental loading of animations or images, signalling as it progresses
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QMultiHash | Convenience QHash subclass that provides multi-valued hashes
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QMultiMap | Convenience QMap subclass that provides multi-valued maps
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QMutex | Access serialization between threads
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QMutexLocker | Simplifies locking and unlocking QMutexes
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QObject | The base class of all Qt objects
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QObjectCleanupHandler | Watches the lifetime of multiple QObjects
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QPNGImagePacker | Creates well-compressed PNG animations
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QPaintDevice | The base class of objects that can be painted
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QPaintDeviceMetrics | Information about a paint device
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QPaintEngine | Abstract definition of how QPainter draws to a given device on a given platform
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QPaintEvent | Event parameters for paint events
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QPainter | Does low-level painting e.g. on widgets
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QPainterPath | Container for painting operations, enabling graphical shapes to be constructed and reused
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QPair | Template class that stores a pair of items
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QPalette | Color groups for each widget state
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QPen | Defines how a QPainter should draw lines and outlines of shapes
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QPersistentModelIndex | Used to locate data in a data model
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QPicture | Paint device that records and replays QPainter commands
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QPictureFormatPlugin | Abstract base for custom picture format plugins
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QPictureIO | Parameters for loading and saving pictures
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QPixmap | Off-screen, pixel-based paint device
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QPixmapCache | Application-wide cache for pixmaps
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QPlatinumStyle | Mac/Platinum look and feel
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QPluginLoader | Loads a plugin at runtime
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QPoint | Defines a point in the plane
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QPointArray | Vector of points
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QPointF | Point object that uses floating point coordinates for accuracy
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QPointer | Template class that provides guarded pointers to QObjects
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QPolygon | Vector of points
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QPrinter | Paint device that paints on a printer
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QProcess | Used to start external programs and to communicate with them
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QProgressBar | Horizontal progress bar
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QProgressDialog | Feedback on the progress of a slow operation
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QPtrCollection | The base class of most pointer-based Qt collections
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QPushButton | Command button
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QQueue | Generic container that provides a queue
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QRadioButton | Radio button with a text or pixmap label
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QRect | Defines a rectangle in the plane
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QRectF | Defines a rectangle in the plane using floating point coordinates for accuracy
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QRegExp | Pattern matching using regular expressions
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QRegExpValidator | Used to check a string against a regular expression
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QRegion | Clip region for a painter
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QResizeEvent | Event parameters for resize events
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QResource | Access to application resource data
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QRubberBand | Rectangle or line that can indicate a selection or a boundary
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QSGIStyle | SGI/Irix look and feel
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QScreen | And its descendants manage the framebuffer and palette
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QScrollBar | Vertical or horizontal scroll bar
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QSemaphore | Robust integer semaphore
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QServerSocket | TCP-based server
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QSessionManager | Access to the session manager
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QSettings | Persistent platform-indendent GUI application settings
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QSharedData | Base class for shared data objects
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QSharedDataPointer | Pointer to a shared data object
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QShortcut | Used to create keyboard shortcuts
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QShowEvent | Event that is sent when a widget is shown
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QSignal | Can be used to send signals for classes that do not inherit QObject
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QSignalMapper | Bundles signals from identifiable senders
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QSize | Defines the size of a two-dimensional object
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QSizeF | Defines the size of a two-dimensional object using floating point values for accuracy
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QSizeGrip | Corner-grip for resizing a top-level window
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QSizePolicy | Layout attribute describing horizontal and vertical resizing policy
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QSjisCodec | Conversion to and from Shift-JIS
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QSlider | Vertical or horizontal slider
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QSocket | Buffered TCP connection
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QSocketDevice | Platform-independent low-level socket API
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QSocketNotifier | Support for socket callbacks
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QSound | Access to the platform audio facilities
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QSpacerItem | Blank space in a layout
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QSpinBox | Spin box widget
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QSplashScreen | Splash screen that can be shown during application startup
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QSplitter | Implements a splitter widget
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QSql | Namespace for Qt SQL identifiers that need to be global-like
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QSqlDatabase | Represents a connection to a database
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QSqlDriver | Abstract base class for accessing SQL databases
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QSqlDriverPlugin | Abstract base for custom QSqlDriver plugins
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QSqlError | SQL database error information
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QSqlField | Manipulates the fields in SQL database tables and views
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QSqlIndex | Functions to manipulate and describe QSqlCursor and QSqlDatabase indexes
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QSqlQuery | Means of executing and manipulating SQL statements
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QSqlQueryModel | Read only data model for SQL result sets
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QSqlRecord | Encapsulates a database record, i.e. a set of database fields
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QSqlRelationalTableModel | Editable data model for a single database table. In addition, columns can be set as foreign keys into another table
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QSqlResult | Abstract interface for accessing data from SQL databases
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QSqlTableModel | Editable data model for a single database table
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QStack | Template class that provides a stack
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QStackedBox | Stack of widgets where only the top widget is visible
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QStackedLayout | Maintains a stack of widgets where only the top widget is visible
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QStatusBar | Horizontal bar suitable for presenting status information
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QStoredDrag | Simple stored-value drag object for arbitrary MIME data
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QString | Unicode character string
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QStringList | List of strings
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QStyle | Abstract base class that encapsulates the look and feel of a GUI
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QStyleFactory | Creates QStyle objects
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QStyleOption | Stores the parameters used by QStyle functions
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QStyleOptionButton | Used to describe the parameters for drawing buttons
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QStyleOptionComboBox | Used to describe the parameter for drawing a combobox
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QStyleOptionComplex | Used to hold parameters that are common to all complex controls
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QStyleOptionDockWindow | Used to describe the parameters for drawing various parts of
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QStyleOptionFocusRect | Used to describe the parameters for drawing a focus rectangle with QStyle
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QStyleOptionFrame | Used to describe the parameters for drawing a frame
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QStyleOptionHeader | Used to describe the parameters for drawing a header
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QStyleOptionListView | Used to describe the parameters for drawing a Q3ListView
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QStyleOptionListViewItem | Used to describe an item drawn in a Q3ListView
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QStyleOptionMenuItem | Used to describe the parameter necessary for drawing a menu item
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QStyleOptionProgressBar | Used to describe the parameters necessary for drawing a progress bar
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QStyleOptionSlider | Used to describe the parameters needed for drawing a slider
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QStyleOptionSpinBox | Used to describe the parameters necessary for drawing a spin box
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QStyleOptionTab | Used to describe the parameters for drawing a tab bar
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QStyleOptionTitleBar | Used to describe the parameters for drawing a title bar
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QStyleOptionToolBox | Used to describe the parameters needed for drawing a tool box
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QStyleOptionToolButton | Used to describe the parameters for drawing a tool button
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QStyleOptionViewItem | Used to describe the parameters used to draw an item in a view widget
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QStylePlugin | Abstract base for custom QStyle plugins
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QTabBar | Tab bar, e.g. for use in tabbed dialogs
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QTabWidget | Stack of tabbed widgets
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QTableView | Default model/view implementation of a table view
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QTableWidget | Item-based table view with a default model
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QTableWidgetItem | Item for use with the QTableWidget class
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QTabletEvent | Parameters that describe a Tablet event
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QTcpServer | TCP-based server
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QTcpSocket | TCP socket
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QTemporaryFile | I/O device that operates on temporary files
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QTextBlock | Container for text fragments in a QTextDocument
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QTextBlockFormat | Formatting information for blocks of text in a QTextDocument
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QTextBlockGroup | Container for text blocks within a QTextDocument
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QTextBrowser | Rich text browser with hypertext navigation
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QTextCharFormat | Formatting information for characters in a QTextDocument
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QTextCodec | Conversions between text encodings
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QTextCodecPlugin | Abstract base for custom QTextCodec plugins
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QTextCursor | Offers an API to access and modify QTextDocuments
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QTextDecoder | State-based decoder
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QTextDocument | Holds formatted text that can be viewed and edited using a QTextEdit
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QTextDocumentFragment | Represents a piece of formatted text from a QTextDocument
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QTextDrag | Drag and drop object for transferring plain and Unicode text
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QTextEdit | Widget that is used to edit and display both plain and rich text
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QTextEncoder | State-based encoder
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QTextFormat | Formatting information for a QTextDocument
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QTextFragment | Holds a piece of text in a QTextDocument with a single QTextCharFormat
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QTextFrame | Represents a frame in a QTextDocument
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QTextFrameFormat | Formatting information for frames in a QTextDocument
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QTextIStream | Convenience class for input streams
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QTextImageFormat | Formatting information for images in a QTextDocument
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QTextInlineObject | Represents an inline object in a QTextLayout
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QTextLayout | Used to lay out and paint a single paragraph of text
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QTextLength | Encapsulates the different types of length used in a QTextDocument
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QTextLine | Represents a line of text inside a QTextLayout
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QTextList | List in a QTextDocument
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QTextListFormat | Formatting information for lists in a QTextDocument
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QTextOStream | Convenience class for output streams
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QTextObject | Base class for different kinds of objects that can group parts of a QTextDocument together
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QTextStream | Functions for reading and writing text using a QIODevice
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QTextTable | Represents a table in a QTextDocument
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QTextTableCell | Represents the properties of a cell in a QTextTable
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QTextTableFormat | Formatting information for tables in a QTextDocument
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QThread | Platform-independent threads
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QThreadStorage | Per-thread data storage
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QTime | Clock time functions
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QTimer | Timer signals and single-shot timers
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QTimerEvent | Parameters that describe a timer event
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QToolBar | Movable panel that contains a set of controls
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QToolBarSwitchEvent | Event that is sent whenever a the toolbar button is clicked on Mac OS X
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QToolBox | Column of tabbed widget items
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QToolButton | Quick-access button to commands or options, usually used inside a QToolBar
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QToolTip | Tool tips (balloon help) for any widget
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QTranslator | Internationalization support for text output
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QTranslatorMessage | Translator message and its properties
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QTreeView | Default model/view implementation of a tree view
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QTreeWidget | Tree view that uses a predefined tree model
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QTreeWidgetItem | Item for use with the QTreeWidget convenience class
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QTsciiCodec | Conversion to and from the Tamil TSCII encoding
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QUdpSocket | UDP socket
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QUriDrag | Drag object for a list of URI references
|
QUrl | Convenient interface for working with URLs
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QUrlInfo | Stores information about URLs
|
QUuid | Defines a Universally Unique Identifier (UUID)
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QVBoxLayout | Lines up widgets vertically
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QVBoxWidget | Vertical geometry management of its child widgets
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QValidator | Validation of input text
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QVarLengthArray | Low-level variable-length array
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QVariant | Acts like a union for the most common Qt data types
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QVector | Template class that provides a dynamic array
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QVectorIterator | Java-style const iterator for QVector and QStack
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QVectorMutableIterator | Java-style non-const iterator for QVector and QStack
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QViewport | Scrolling area with on-demand scroll bars
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QWSInputMethod | International input methods for Qt/Embedded
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QWSKeyboardHandler | Implements the keyboard driver for Qt/Embedded
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QWSMouseHandler | Mouse driver for Qt/Embedded
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QWSServer | Server-specific functionality in Qt/Embedded
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QWSWindow | Server-specific functionality in Qt/Embedded
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QWaitCondition | Allows waiting/waking for conditions between threads
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QWhatsThis | Simple description of any widget, i.e. answering the question "What's this?"
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QWheelEvent | Parameters that describe a wheel event
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QWidget | The base class of all user interface objects
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QWidgetContainerPlugin | Abstract base for complex custom container QWidget plugins
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QWidgetItem | Layout item that represents a widget
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QWidgetPlugin | Abstract base for custom QWidget plugins
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QWidgetView | Scrolling view onto another widget
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QWindowsMime | Maps open-standard MIME to Window Clipboard formats
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QWindowsStyle | Microsoft Windows-like look and feel
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QWindowsXPStyle | Microsoft WindowsXP-like look and feel
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QWorkspace | Workspace window that be used in an MDI application
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QX11Info | Information about the X display configuration
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QXmlAttributes | XML attributes
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QXmlContentHandler | Interface to report the logical content of XML data
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QXmlDTDHandler | Interface to report DTD content of XML data
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QXmlDeclHandler | Interface to report declaration content of XML data
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QXmlDefaultHandler | Default implementation of all the XML handler classes
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QXmlEntityResolver | Interface to resolve external entities contained in XML data
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QXmlErrorHandler | Interface to report errors in XML data
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QXmlInputSource | The input data for the QXmlReader subclasses
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QXmlLexicalHandler | Interface to report the lexical content of XML data
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QXmlLocator | The XML handler classes with information about the parsing position within a file
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QXmlNamespaceSupport | Helper class for XML readers which want to include namespace support
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QXmlParseException | Used to report errors with the QXmlErrorHandler interface
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QXmlReader | Interface for XML readers (i.e. parsers)
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QXmlSimpleReader | Implementation of a simple XML parser
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