2D area that can contain TQCanvasItem objects. | TQCanvas
2D transformations of a coordinate system. | TQWMatrix
Abstract base class for accessing SQL databases. | TQSqlDriver
Abstract base class for custom menu items in popup menus. | QCustomMenuItem
Abstract base class of internal layout iterators. | TQGLayoutIterator
Abstract base for custom TQSqlDriver plugins. | TQSqlDriverPlugin
Abstract base for custom TQStyle plugins. | TQStylePlugin
Abstract base for custom TQTextCodec plugins. | TQTextCodecPlugin
Abstract base for custom TQWidget plugins. | TQWidgetPlugin
Abstract base for custom image format plugins. | TQImageFormatPlugin
Abstract base for fixed-size grids. | TQGridView
Abstract graphic object on a TQCanvas. | TQCanvasItem
Abstract interface for accessing data from SQL databases. | TQSqlResult
Abstract item that a TQLayout manipulates. | TQLayoutItem
Abstract user interface action that can appear both in menus and tool bars. | TQAction
Abstraction for date and edit editors. | TQDateTimeEditBase
Abstraction of Unicode text and the classic C '\0'-terminated char array. | TQString
Abstraction of objects which provide formatted data of a certain MIME type. | TQMimeSource
Abstraction of the classic C zero-terminated char array (char *). | TQCString
Abstraction used by TQImageDecoder. | TQImageConsumer
Access serialization between threads. | TQMutex
Access to a selected area in a TQTable. | TQTableSelection
Access to directory structures and their contents in a platform-independent way. | TQDir
Access to screen information on multi-head systems. | TQDesktopWidget
Access to the platform audio facilities. | QSound
Access to the session manager. | TQSessionManager
Access to the window system clipboard. | TQClipboard
Acts like a union for the most common TQt data types. | QVariant
Allows waiting/waking for conditions between threads. | TQWaitCondition
Animated canvas item on a TQCanvas. | TQCanvasSprite
Application-global cache for pixmaps. | TQPixmapCache
Area with movable labelled icons. | TQIconView
Array of TQCanvasPixmaps. | TQCanvasPixmapArray
Array of bits. | TQBitArray
Array of bytes. | TQByteArray
Array of points. | TQPointArray
Asynchronous DNS lookups. | TQDns
Base class for TQMenuBar and TQPopupMenu. | TQMenuData
Base class for implementing TQTextEdit syntax highlighters. | TQSyntaxHighlighter
Basic functions for reading and writing text using a TQIODevice. | TQTextStream
Blank space in a layout. | TQSpacerItem
Browsing and editing of SQL tables and views. | TQSqlCursor
Browsing of general SQL SELECT statements. | TQSqlSelectCursor
Buffered TCP connection. | TQSocket
Bundles signals from identifiable senders. | TQSignalMapper
CDE look and feel. | QCDEStyle
Can be used to send signals for classes that don't inherit TQObject. | TQSignal
Checkable list view items. | TQCheckListItem
Checkbox with a text label. | TQCheckBox
Checkboxes in TQTables. | TQCheckTableItem
Clip region for a painter. | TQRegion
Clock time functions. | TQTime
Collection of nodes that can be accessed by name. | TQDomNamedNodeMap
Collection of styles for rich text rendering and a generator of tags. | TQStyleSheet
Collects tool tips into related groups. | TQToolTipGroup
Color groups for each widget state. | TQPalette
Colors based on RGB or HSV values. | TQColor
Column of tabbed widget items. | TQToolBox
Combined button and popup list. | TQComboBox
Combines a TQDateEdit and TQTimeEdit widget into a single widget for editing datetimes. | TQDateTimeEdit
Command button. | TQPushButton
Common API for network protocols. | TQNetworkProtocol
Common operations for network protocols. | TQNetworkOperation
Common operations on URLs. | TQUrlOperator
Const iterator for TQValueList. | TQValueListConstIterator
Convenience class for input streams. | TQTextIStream
Convenience class for output streams. | TQTextOStream
Conversion between text encodings. | TQTextCodec
Conversion to and from EUC-JP character sets. | TQEucJpCodec
Conversion to and from EUC-KR character sets. | TQEucKrCodec
Conversion to and from JIS character sets. | TQJisCodec
Conversion to and from Shift-JIS. | TQSjisCodec
Conversion to and from the Big5 encoding. | TQBig5Codec
Conversion to and from the Big5-HKSCS encoding. | TQBig5hkscsCodec
Conversion to and from the Chinese GB18030/GBK/GB2312 encoding. | TQGb18030Codec
Conversion to and from the Chinese GB2312 encoding. | TQGb2312Codec
Conversion to and from the Chinese GBK encoding. | TQGbkCodec
Conversion to and from the Tamil TSCII encoding. | TQTsciiCodec
Conversion to and from visually ordered Hebrew. | TQHebrewCodec
Converts between numbers and their string representations in various languages. | TQLocale
Corner-grip for resizing a top-level window. | TQSizeGrip
Creates TQStyle objects. | TQStyleFactory
Creates and manages data entry forms tied to SQL databases. | TQSqlForm
Creates well-compressed PNG animations. | TQPNGImagePacker
Data manipulation and navigation for data entry forms. | TQDataBrowser
Date and time functions. | TQDateTime
Date editor. | TQDateEdit
Date functions. | TQDate
Default implementation of all the XML handler classes. | TQXmlDefaultHandler
Defines a Universally Unique Identifier (UUID). | QUuid
Defines a point in the plane. | TQPoint
Defines a rectangle in the plane. | TQRect
Defines an interface that exposes information about accessible objects. | QAccessibleInterface
Defines how a TQPainter should draw lines and outlines of shapes. | TQPen
Defines the fill pattern of shapes drawn by a TQPainter. | TQBrush
Defines the size of a two-dimensional object. | TQSize
Describes a key event. | QKeyEvent
Dialog widget for selecting a font. | TQFontDialog
Dialog widget for specifying colors. | TQColorDialog
Dialogs that allow users to select files or directories. | TQFileDialog
Displays a number with LCD-like digits. | TQLCDNumber
Does low-level painting e.g. on widgets. | TQPainter
Doubly-linked list of char*. | TQStrList
Doubly-linked list of char* with case-insensitive comparison. | TQStrIList
Drag and drop object for transferring colors. | TQColorDrag
Drag and drop object for transferring images. | TQImageDrag
Drag and drop object for transferring plain and Unicode text. | TQTextDrag
Drag object for a list of URI references. | TQUriDrag
Ellipse or ellipse segment on a TQCanvas. | TQCanvasEllipse
Encapsulates MIME-based data transfer. | TQDragObject
Encapsulates a database record, i.e. a set of database fields. | TQSqlRecord
Encapsulates a drag item. | TQIconDragItem
Encapsulates a key sequence as used by accelerators. | QKeySequence
Encapsulates a set of database field meta data. | TQSqlRecordInfo
Encapsulates an OpenGL rendering context. | TQGLContext
Encapsulates the common Look and Feel of a GUI. | QCommonStyle
Encapsulation of a set of text styles. | TQStyleSheetItem
Enums and static functions relating to accessibility. | QAccessible
Error message display dialog. | QErrorMessage
Event parameters for child object events. | QChildEvent
Event parameters for move events. | QMoveEvent
Event parameters for paint events. | TQPaintEvent
Event parameters for resize events. | QResizeEvent
Event parameters for widget focus events. | QFocusEvent
Event which is sent after a widget is hidden. | QHideEvent
Event which is sent to the widget when a drag and drop first drags onto the widget. | TQDragEnterEvent
Event which is sent to the widget when a drag and drop leaves the widget. | TQDragLeaveEvent
Event which is sent when a drag and drop is completed. | TQDropEvent
Event which is sent when a widget is shown. | QShowEvent
Event which is sent while a drag and drop is in progress. | TQDragMoveEvent
Extensible provider of mime-typed data. | TQMimeSourceFactory
Factory that makes TQImageFormat objects. | TQImageFormatType
Feedback on the progress of a slow operation. | TQProgressDialog
File previewing in TQFileDialog. | TQFilePreview
Flexible SQL table widget that supports browsing and editing. | TQDataTable
Flexible editable table widget. | TQTable
Font metrics information. | TQFontMetrics
Font used for drawing text. | TQFont
For the dynamic creation of widgets from TQt Designer .ui files. | TQWidgetFactory
Framework for wizard dialogs. | TQWizard
Functions to manipulate and describe TQSqlCursor and TQSqlDatabase indexes. | TQSqlIndex
General information about fonts. | TQFontInfo
Group box frame with a title. | TQGroupBox
Group of widget colors. | TQColorGroup
Groups actions together. | TQActionGroup
Handles keyboard accelerator and shortcut keys. | QAccel
Hardware-independent pixmap representation with direct access to the pixel data. | TQImage
Header information for HTTP. | TQHttpHeader
Header row or column, e.g. for tables and listviews. | TQHeader
Helper class for TQString. | TQCharRef
Helper class for XML readers which want to include namespace support. | TQXmlNamespaceSupport
Horizontal bar suitable for presenting status information. | TQStatusBar
Horizontal geometry management for its child widgets. | TQHBox
Horizontal menu bar. | TQMenuBar
Horizontal progress bar. | TQProgressBar
I/O device that operates on a TQByteArray. | TQBuffer
I/O device that operates on files. | TQFile
IP address. | TQHostAddress
Icons for TQFileDialog to use. | TQFileIconProvider
Implementation of a TQNetworkProtocol that works on the local file system. | TQLocalFs
Implementation of a simple XML reader (parser). | TQXmlSimpleReader
Implementation of the FTP protocol. | TQFtp
Implementation of the HTTP protocol. | TQHttp
Implements a list view item. | TQListViewItem
Implements a list/tree view. | TQListView
Implements a splitter widget. | QSplitter
Implements an Appearance Manager style. | QMacStyle
Implements parts of the QAccessibleInterface for TQObjects. | QAccessibleObject
Incremental image decoder for a specific image format. | TQImageFormat
Incremental image decoder for all supported image formats. | TQImageDecoder
Incremental loading of animations or images, signalling as it progresses. | TQMovie
Information about a paint device. | TQPaintDeviceMetrics
Information about the features of the DOM implementation. | TQDomImplementation
Information about the fonts available in the underlying window system. | TQFontDatabase
Integer value within a range. | QRangeControl
Interface for XML readers (i.e. parsers). | TQXmlReader
Interface to report DTD content of XML data. | TQXmlDTDHandler
Interface to report declaration content of XML data. | TQXmlDeclHandler
Interface to report errors in XML data. | TQXmlErrorHandler
Interface to report the lexical content of XML data. | TQXmlLexicalHandler
Interface to report the logical content of XML data. | TQXmlContentHandler
Interface to resolve external entities contained in XML data. | TQXmlEntityResolver
Internal class, used with TQBitArray. | TQBitVal
Internationalization support for text output. | TQTranslator
Iterator for TQAsciiCache collections. | TQAsciiCacheIterator
Iterator for TQAsciiDict collections. | TQAsciiDictIterator
Iterator for TQCache collections. | TQCacheIterator
Iterator for TQDict collections. | TQDictIterator
Iterator for TQIntCache collections. | TQIntCacheIterator
Iterator for TQIntDict collections. | TQIntDictIterator
Iterator for TQMap. | TQMapConstIterator
Iterator for TQMap. | TQMapIterator
Iterator for TQObjectLists. | TQObjectListIterator
Iterator for TQPtrDict collections. | TQPtrDictIterator
Iterator for TQPtrList collections. | TQPtrListIterator
Iterator for TQValueList. | TQValueListIterator
Iterator for collections of TQListViewItems. | TQListViewItemIterator
Iterator for the TQStrList and TQStrIList classes. | TQStrListIterator
Iterators over TQLayoutItem. | TQLayoutIterator
Layout attribute describing horizontal and vertical resizing policy. | TQSizePolicy
Layout item that represents a widget. | TQWidgetItem
Lays out widgets in a grid. | TQGridLayout
Lightweight Unicode character. | TQChar
Line on a TQCanvas. | TQCanvasLine
Lines up child widgets horizontally or vertically. | TQBoxLayout
Lines up widgets horizontally. | TQHBoxLayout
Lines up widgets vertically. | TQVBoxLayout
List box items that display text. | TQListBoxText
List box items with a pixmap and optional text. | TQListBoxPixmap
List of TQCanvasItems. | TQCanvasItemList
List of TQDomNode objects. | TQDomNodeList
List of selectable, read-only items. | TQListBox
List of strings. | TQStringList
Mac/Platinum look and feel. | QPlatinumStyle
Main application window, with a menu bar, dock windows (e.g. for toolbars), and a status bar. | TQMainWindow
Maintains the list of widgets in the focus chain. | QFocusData
Manages and lays out QDockWindows. | QDockArea
Manages the GUI application's control flow and main settings. | QApplication
Manages the event queue. | TQEventLoop
Manipulates the fields in SQL database tables and views. | TQSqlField
Maps open-standard MIME to Mac flavors. | TQMacMime
Maps open-standard MIME to Window Clipboard formats. | TQWindowsMime
Means of executing and manipulating SQL statements. | TQSqlQuery
Means of using TQt Assistant as an application's help tool. | QAssistantClient
Means of using comboboxes in TQTables. | TQComboTableItem
Meta information about TQt objects. | QMetaObject
Microsoft Windows-like look and feel. | QWindowsStyle
Modal dialog with a short message, an icon, and some buttons. | QMessageBox
Monochrome (1-bit depth) pixmaps. | TQBitmap
More sophisticated Motif-ish look and feel. | QMotifPlusStyle
Motif look and feel. | QMotifStyle
Mouse cursor with an arbitrary shape. | QCursor
Movable panel containing widgets such as tool buttons. | TQToolBar
Multi-bezier splines on a TQCanvas. | TQCanvasSpline
Namespace for TQt SQL identifiers that need to be global-like. | TQSql
Namespace for miscellaneous identifiers in the TQt OpenGL module. | TQGL
Namespace for miscellaneous identifiers that need to be global-like. | Qt
Off-screen, pixel-based paint device. | TQPixmap
On-screen view of a TQCanvas. | TQCanvasView
One-line text editor. | TQLineEdit
Optional parameters for TQStyle functions. | TQStyleOption
Organizes TQButton widgets in a group. | TQButtonGroup
Organizes TQButton widgets in a group with one horizontal row. | TQHButtonGroup
Organizes TQButton widgets in a vertical column. | TQVButtonGroup
Organizes a group of widgets in a vertical column. | TQVGroupBox
Organizes widgets in a group with one horizontal row. | TQHGroupBox
Paint device that paints on a printer. | TQPrinter
Paint device that records and replays TQPainter commands. | TQPicture
Parameters for input method events. | QIMEvent
Parameters for loading and saving images. | TQImageIO
Parameters that describe a Tablet event. | TQTabletEvent
Parameters that describe a close event. | QCloseEvent
Parameters that describe a context menu event. | QContextMenuEvent
Parameters that describe a mouse event. | QMouseEvent
Parameters that describe a timer event. | TQTimerEvent
Parameters that describe a wheel event. | QWheelEvent
Pattern matching using regular expressions. | TQRegExp
Per-thread data storage. | TQThreadStorage
Persistent platform-independent application settings. | TQSettings
Pixmaps for TQCanvasSprites. | TQCanvasPixmap
Platform-independent low-level socket API. | TQSocketDevice
Platform-independent threads. | TQThread
Polygon on a TQCanvas. | TQCanvasPolygon
Polygonal canvas item on a TQCanvas. | TQCanvasPolygonalItem
Popup menu widget. | TQPopupMenu
Powerful single-page rich text editor. | TQTextEdit
TQObject that is a web browser plugin. | QNPInstance
TQPtrList of TQObjects. | TQObjectList
TQWidget that is a web browser plugin window. | QNPWidget
Quick-access button to commands or options, usually used inside a TQToolBar. | TQToolButton
Radio button with a text or pixmap label. | TQRadioButton
Range checking of floating-point numbers. | QDoubleValidator
Read-only SQL forms. | TQDataView
Rectangle on a TQCanvas. | TQCanvasRectangle
Represents a generic string in the DOM. | TQDomCharacterData
Represents an XML CDATA section. | TQDomCDATASection
Represents an XML comment. | TQDomComment
Represents an XML document. | TQDomDocument
Represents an XML entity. | TQDomEntity
Represents an XML entity reference. | TQDomEntityReference
Represents an XML notation. | TQDomNotation
Represents an XML processing instruction. | TQDomProcessingInstruction
Represents one attribute of a TQDomElement. | TQDomAttr
Represents one element in the DOM tree. | TQDomElement
Represents text data in the parsed XML document. | TQDomText
Request header information for HTTP. | TQHttpRequestHeader
Response header information for HTTP. | TQHttpResponseHeader
Rich text browser with hypertext navigation. | TQTextBrowser
Robust integer semaphore. | TQSemaphore
Rounded range control (like a speedometer or potentiometer). | TQDial
SGI/Irix look and feel. | QSGIStyle
SQL database error information. | TQSqlError
Scrolling area with on-demand scroll bars. | TQScrollView
Serialization of binary data to a TQIODevice. | TQDataStream
Set of icons with different styles and sizes. | TQIconSet
Signals that a main icon drag has begun. | TQIconDragEvent
Simple convenience dialog to get a single value from the user. | QInputDialog
Simple description of any widget, i.e. answering the question "What's this?". | TQWhatsThis
Simple geometry management of its children. | TQGrid
Simple stored-value drag object for arbitrary MIME data. | TQStoredDrag
Simplifies locking and unlocking TQMutexes. | TQMutexLocker
Single item in a TQIconView. | TQIconViewItem
Small displayable piece of rich text. | TQSimpleRichText
Spin box widget (spin button). | TQSpinBox
Splash screen that can be shown during application startup. | QSplashScreen
Stack of tabbed widgets. | TQTabDialog
Stack of tabbed widgets. | TQTabWidget
Stack of widgets of which only the top widget is user-visible. | TQWidgetStack
State-based decoder. | TQTextDecoder
State-based encoder. | TQTextEncoder
Stores information about URLs. | TQUrlInfo
Stores meta data about a property. | QMetaProperty
Stores meta data associated with a SQL field. | TQSqlFieldInfo
Stream of data provided to a QNPInstance by the browser. | QNPStream
String objects using constant Unicode data. | TQConstString
Support for custom events. | QCustomEvent
Support for socket callbacks. | TQSocketNotifier
Supports drag and drop operations within a TQIconView. | TQIconDrag
System-independent file information. | TQFileInfo
TCP-based server. | TQServerSocket
Tab bar, e.g. for use in tabbed dialogs. | TQTabBar
Template class that provides a cache based on TQString keys. | TQCache
Template class that provides a cache based on char* keys. | TQAsciiCache
Template class that provides a cache based on long keys. | TQIntCache
Template class that provides a dictionary based on TQString keys. | TQDict
Template class that provides a dictionary based on char* keys. | TQAsciiDict
Template class that provides a dictionary based on long keys. | TQIntDict
Template class that provides a dictionary based on void* keys. | TQPtrDict
Template class that provides a list. | TQPtrList
Template class that provides a queue. | TQPtrQueue
Template class that provides a stack. | TQPtrStack
Template class that provides arrays of simple types. | TQMemArray
Template class that provides guarded pointers to TQObjects. | QGuardedPtr
Template class which ensures that implicitly shared and explicitly shared classes reference unique data. | TQDeepCopy
Template collection class that provides a vector (array). | TQPtrVector
Text object on a TQCanvas. | TQCanvasText
Text or image display. | TQLabel
The TQDialog API for Motif-based dialogs. | QMotifDialog
The TQWidget API for Xt/Motif widgets. | QMotifWidget
The XML handler classes with information about the parsing position within a file. | TQXmlLocator
The abstract base class of button widgets, providing functionality common to buttons. | TQButton
The base class for all the nodes in a DOM tree. | TQDomNode
The base class of I/O devices. | TQIODevice
The base class of all TQt objects. | TQObject
The base class of all event classes. Event objects contain event parameters. | TQEvent
The base class of all list box items. | TQListBoxItem
The base class of all user interface objects. | TQWidget
The base class of dialog windows. | TQDialog
The base class of geometry managers. | TQLayout
The base class of most pointer-based TQt collections. | TQPtrCollection
The base class of objects that can be painted. | TQPaintDevice
The base class of widgets that can have a frame. | TQFrame
The basis of the Motif Extension. | QMotif
The cell content for TQTable cells. | TQTableItem
The display format of an OpenGL rendering context. | TQGLFormat
The input data for the TQXmlReader subclasses. | TQXmlInputSource
The look and feel of a GUI. | TQStyle
The main factory for plugin objects. | QNPlugin
The representation of the DTD in the document tree. | TQDomDocumentType
The structures in a TQTabBar. | TQTab
Time editor. | TQTimeEdit
Timer signals and single-shot timers. | TQTimer
Tool tips (balloon help) for any widget or rectangular part of a widget. | TQToolTip
Translator message and its properties. | TQTranslatorMessage
Tree of TQDomNodes which is not usually a complete TQDomDocument. | TQDomDocumentFragment
URL parser and simplifies working with URLs. | TQUrl
Used for installing custom colormaps into TQGLWidgets. | TQGLColormap
Used to check a string against a regular expression. | TQRegExpValidator
Used to create SQL database connections and to provide transaction handling. | TQSqlDatabase
Used to create editor widgets for QVariant data types. | TQEditorFactory
Used to create pixmaps for a TQIconSet. | TQIconFactory
Used to create the editors used by TQDataTable and TQSqlForm. | TQSqlEditorFactory
Used to map widgets to SQL fields. | TQSqlPropertyMap
Used to report errors with the TQXmlErrorHandler interface. | TQXmlParseException
Used to start external programs and to communicate with them. | TQProcess
Validation of input text. | QValidator
Validator which ensures that a string contains a valid integer within a specified range. | QIntValidator
Value-based template class that provides a dictionary. | TQMap
Value-based template class that provides a dynamic array. | TQValueVector
Value-based template class that provides a pair of elements. | TQPair
Value-based template class that provides a stack. | TQValueStack
Value-based template class that provides lists. | TQValueList
Vertical geometry management of its child widgets. | TQVBox
Vertical or horizontal scroll bar. | TQScrollBar
Vertical or horizontal slider. | TQSlider
Watches the lifetime of multiple TQObjects. | TQObjectCleanupHandler
Widget for rendering OpenGL graphics. | TQGLWidget
Widget which can be docked inside a QDockArea or floated as a top level window on the desktop. | QDockWindow
Workspace window that can contain decorated windows, e.g. for MDI. | TQWorkspace
Wrapper for handling shared libraries. | QLibrary
XML attributes. | TQXmlAttributes