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Reference Guide
 
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Low level GUI widgets

All the low level widgets and built-in dialogs of GUI class library in ROOT.

Modules

 GUI Geometry
 Several small geometry classes that implement dimensions (width and height), positions (x and y), insets and rectangles.
 

Classes

class  TBrowserPlugin
 Helper class used to manage plugins (command or macro to be executed). More...
 
class  TCursorSwitcher
 Helper class used to change the cursor in a method and restore the original one when going out of the method scope. More...
 
class  TDNDData
 Drag and drop data container. More...
 
class  TG16ColorSelector
 A composite frame with 16 TGColorFrames. More...
 
class  TGApplication
 This class initialize the ROOT GUI toolkit. More...
 
class  TGButton
 A button abstract base class. More...
 
class  TGButtonGroup
 Organizes TGButton widgets in a group. More...
 
class  TGCanvas
 A frame containing two scrollbars (a horizontal and a vertical) and a viewport. More...
 
class  TGCheckButton
 Selects different options. More...
 
class  TGClient
 Window client. More...
 
class  TGColorDialog
 A full featured color selection dialog. More...
 
class  TGColorFrame
 A small frame with border showing a specific color. More...
 
class  TGColorPalette
 A widget showing an matrix of color cells. More...
 
class  TGColorPick
 A widget which allows a color to be picked from HLS color space. More...
 
class  TGColorPopup
 A popup containing a TG16ColorSelector and a "More..." button which popups up a TGColorDialog allowing custom color selection. More...
 
class  TGColorSelect
 Like a checkbutton but instead of the check mark there is color area with a little down arrow. More...
 
class  TGColumnLayout
 The following layout manager do not make use of TGLayoutHints. More...
 
class  TGComboBox
 A combobox (also known as a drop down listbox) allows the selection of one item out of a list of items. More...
 
class  TGComboBoxPopup
 A service class of the combobox. More...
 
class  TGCommandPlugin
 Class used to redirect the command line input/output. More...
 
class  TGCompositeFrame
 The base class for composite widgets (menu bars, list boxes, etc.). More...
 
class  TGContainer
 Manages a content area. More...
 
class  TGDockableFrame
 A frame with handles that allow it to be undocked (i.e. More...
 
class  TGDoubleHSlider
 Dragging the slider will generate the event: More...
 
class  TGDoubleSlider
 DoubleSlider widgets allow easy selection of a min and a max value out of a range. More...
 
class  TGDoubleVSlider
 Dragging the slider will generate the event: More...
 
class  TGDragWindow
 Window used as drag icon during drag and drop operations. More...
 
class  TGEventHandler
 
class  TGFileBrowser
 System file browser, used as TRootBrowser plug-in. More...
 
class  TGFileDialog
 This class creates a file selection dialog. More...
 
class  TGFileEntry
 Utility class used by the file selection dialog (TGFSDialog). More...
 
class  TGFileIcon
 Utility class used by the file selection dialog (TGFSDialog). More...
 
class  TGFont
 Encapsulate fonts used in the GUI system. More...
 
class  TGFontDialog
 Font selection dialog, allowing to select one in the list of available fonts in the system. More...
 
class  TGFontPool
 Provides a pool of fonts. More...
 
class  TGFrame
 A subclasses of TGWindow, and is used as base class for some simple widgets (buttons, labels, etc.). More...
 
class  TGFSComboBox
 This is a combo box that is used in the File Selection dialog box. More...
 
class  TGFSContainer
 Utility class used by the file selection dialog (TGFSDialog). More...
 
class  TGGC
 Encapsulate a graphics context used in the low level graphics. More...
 
class  TGGroupFrame
 A composite frame with a border and a title. More...
 
class  TGHButtonGroup
 Organizes TGButton widgets in a group with one horizontal row. More...
 
class  TGHeaderFrame
 Horizontal Frame used to contain header buttons and splitters in a list view. More...
 
class  TGHorizontal3DLine
 A horizontal 3D line is a line that typically separates a toolbar from the menubar. More...
 
class  TGHorizontalFrame
 A composite frame that layout their children in horizontal way. More...
 
class  TGHorizontalLayout
 
class  TGHotString
 TGHotString is a string with a "hot" character underlined. More...
 
class  TGHScrollBar
 The TGHScrollBar will generate the following event messages: kC_HSCROLL, kSB_SLIDERPOS, position, 0 kC_HSCROLL, kSB_SLIDERTRACK, position, 0. More...
 
class  TGHSlider
 Concrete class for horizontal slider. More...
 
class  TGIcon
 This class handles GUI icons. More...
 
class  TGIconLBEntry
 Icon + text listbox entry. More...
 
class  TGIdleHandler
 Handle idle events, i.e. More...
 
class  TGImageMap
 (with TGRegion and TGRegionWithId help classes) More...
 
class  TGInputDialog
 Input Dialog Widget. More...
 
class  TGLabel
 This class handles GUI labels. More...
 
class  TGLayoutHints
 This class describes layout hints used by the layout classes. More...
 
class  TGLayoutManager
 Frame layout manager. More...
 
class  TGLBContainer
 A Composite frame that contains a list of TGLBEnties. More...
 
class  TGLBEntry
 Basic listbox entries. More...
 
class  TGLineLBEntry
 Line style and width listbox entries. More...
 
class  TGListBox
 A listbox is a box, possibly with scrollbar, containing entries. More...
 
class  TGListDetailsLayout
 This is a layout manager for the TGListView widget. More...
 
class  TGListLayout
 This is a layout manager for the TGListView widget. More...
 
class  TGListTree
 A list tree is a widget that can contain a number of items arranged in a tree structure. More...
 
class  TGListView
 A list view is a widget that can contain a number of items arranged in a grid or list. More...
 
class  TGMainFrame
 Defines top level windows that interact with the system Window Manager. More...
 
class  TGMatrixLayout
 This layout managers does not make use of TGLayoutHints. More...
 
class  TGMdiDecorFrame
 This file contains all different MDI frame decoration classes. More...
 
class  TGMdiFrame
 This file contains the TGMdiFrame class. More...
 
class  TGMdiMainFrame
 This file contains the TGMdiMainFrame class. More...
 
class  TGMdiMenu
 This file contains the TGMdiMenuBar class. More...
 
class  TGMenuBar
 The TGMenu.h header contains all different menu classes. More...
 
class  TGMime
 TGMime is internally used by TGMimeTypes. More...
 
class  TGMimeTypes
 This class handles mime types, used by browsers to map file types to applications and icons. More...
 
class  TGNumberEntry
 TGNumberEntry is a number entry input widget with up/down buttons. More...
 
class  TGObject
 This class is the baseclass for all ROOT GUI widgets. More...
 
class  TGPack
 Stack of frames in horizontal (default) or vertical stack. More...
 
class  TGPasswdDialog
 Graphic dialog to enter passwords. More...
 
class  TGPicture
 The TGPicture class implements pictures and icons used in the different GUI elements and widgets. More...
 
class  TGPictureButton
 Yield an action as soon as it is clicked. More...
 
class  TGProgressBar
 The classes in this file implement progress bars. More...
 
class  TGRadioButton
 Selects different options. More...
 
class  TGRedirectOutputGuard
 This class provides output redirection to a TGTextView in guaranteed exception safe way. More...
 
class  TGResourcePool
 This class implements a pool for the default GUI resource set, like GC's, colors, fonts, etc. More...
 
class  TGRowLayout
 The following two layout managers do not make use of TGLayoutHints. More...
 
class  TGScrollBar
 The classes in this file implement scrollbars. More...
 
class  TGScrollBarElements
 The "head", "tail" and "slider". More...
 
class  TGShapedFrame
 A Shaped window. More...
 
class  TGShutter
 A shutter widget contains a set of shutter items that can be open and closed like a shutter. More...
 
class  TGSimpleTable
 To provide a simple class to visualize an array of doubles, the class TGSimpleTable is provided. More...
 
class  TGSimpleTableInterface
 TGSimpleTableInterface is a very simple implementation of a TVirtualTableInterface. More...
 
class  TGSlider
 Slider widgets allow easy selection of a range. More...
 
class  TGSpeedo
 TGSpeedo is a widget looking like a speedometer, with a needle, a counter and a small odometer window. More...
 
class  TGSplitButton
 Implements a button with added menu functionality. More...
 
class  TGSplitFrame
 A split frame. More...
 
class  TGSplitter
 A splitter allows the frames left and right or above and below of it to be resized. More...
 
class  TGSplitTool
 A split frame tool tip. More...
 
class  TGStatusBar
 Provides a StatusBar widget. More...
 
class  TGString
 TGString wraps a TString and adds some graphics routines like drawing, size of string on screen depending on font, etc. More...
 
class  TGTab
 A tab widget contains a set of composite frames each with a little tab with a name (like a set of folders with tabs). More...
 
class  TGTabElement
 Service classes of the tab widget. More...
 
class  TGTabLayout
 Service classes of the tab widget. More...
 
class  TGTable
 Create an array to hold a bunch of numbers. More...
 
class  TGTableCell
 TGTableCell is the class that represents a single cell in a TGTable. More...
 
class  TGTableFrame
 TGTableFrame contains a composite frame that uses a TGMatrixLayout to Layout the frames it contains. More...
 
class  TGTableHeader
 TGTableHeader is the class that implements a header for a row or column. More...
 
class  TGTableHeaderFrame
 TGTableHeaderFrame implements a frame used to display TGTableHeaders in a TGTable. More...
 
class  TGTableLayout
 A layout manager, which places child frames in a table arranged in rows and columns, making it easy to align many widgets next each to other horizontally and vertically. More...
 
class  TGTableLayoutHints
 This class describes layout hints used by the TGTableLayout class. More...
 
class  TGText
 A TGText is a multi line text buffer. More...
 
class  TGTextBuffer
 A text buffer is used in several widgets, like TGTextEntry, TGFileDialog, etc. More...
 
class  TGTextButton
 Yield an action as soon as it is clicked. More...
 
class  TGTextEdit
 A TGTextEdit is a specialization of TGTextView. More...
 
class  TGTextEditDialogs
 This file defines several dialogs that are used by the TGTextEdit widget via its associated context popup menu. More...
 
class  TGTextEditor
 A simple text editor that uses the TGTextEdit widget. More...
 
class  TGTextEntry
 A TGTextEntry is a one line text input widget. More...
 
class  TGTextLayout
 Is used to keep track of string measurement information when using the text layout facilities. More...
 
class  TGTextLBEntry
 Text string listbox entries. More...
 
class  TGTextView
 A TGTextView is a text viewer widget. More...
 
class  TGTextViewStream
 A TGTextViewStream is a text viewer widget. More...
 
class  TGTileLayout
 This is a layout manager for the TGListView widget. More...
 
class  TGToolBar
 A toolbar is a composite frame that contains TGPictureButtons. More...
 
class  TGToolTip
 A tooltip can be a one or multiple lines help text that is displayed in a window when the mouse cursor overs a widget, without clicking it. More...
 
class  TGTransientFrame
 Defines transient windows that typically are used for dialogs windows. More...
 
class  TGTripleHSlider
 TripleSlider inherit from DoubleSlider widgets and allow easy selection of a min, max and pointer value out of a range. More...
 
class  TGTripleVSlider
 TripleSlider inherit from DoubleSlider widgets and allow easy selection of a min, max and pointer value out of a range. More...
 
class  TGUnknownWindowHandler
 Handle events for windows that are not part of the native ROOT GUI. More...
 
class  TGVButtonGroup
 Organizes TGButton widgets in a group with one vertical column. More...
 
class  TGVertical3DLine
 A vertical 3D line is a line that can be used to separate groups of widgets. More...
 
class  TGVerticalFrame
 A composite frame that layout their children in vertical way. More...
 
class  TGVerticalLayout
 
class  TGView
 A TGView provides the infrastructure for text viewer and editor widgets. More...
 
class  TGVScrollBar
 The TGVScrollBar will generate the following event messages: kC_VSCROLL, kSB_SLIDERPOS, position, 0 kC_VSCROLL, kSB_SLIDERTRACK, position, 0. More...
 
class  TGVSlider
 Concrete class for vertical slider. More...
 
class  TGWidget
 The widget base class. More...
 
class  TGWindow
 ROOT GUI Window base class. More...
 
class  TGXYLayout
 Is a layout manager where the position and the size of each widget in the frame are defined by X / Y - coordinates. More...
 
class  TGXYLayoutHints
 This layout hint must be used for the TGXYLayout manager! More...
 
class  TMsgBox
 A message dialog box. More...
 
class  TRootApplication
 This class create the ROOT native GUI version of the ROOT application environment. More...
 
class  TRootBrowser
 This class creates a ROOT object browser, constituted by three main tabs. More...
 
class  TRootBrowserLite
 This class creates a ROOT object browser (looking like Windows Explorer). More...
 
class  TRootCanvas
 This class creates a main window with menubar, scrollbars and a drawing area. More...
 
class  TRootContextMenu
 This class provides an interface to context sensitive popup menus. More...
 
class  TRootControlBar
 This class provides an interface to the GUI dependent functions of the TControlBar class. More...
 
class  TRootDialog
 A TRootDialog is used to prompt for the arguments of an object's member function. More...
 
class  TRootEmbeddedCanvas
 This class creates a TGCanvas in which a TCanvas is created. More...
 
class  TRootEmbeddedContainer
 Utility class used by TRootEmbeddedCanvas. More...
 
class  TRootGuiFactory
 This class is a factory for ROOT GUI components. More...
 
class  TRootHelpDialog
 A TRootHelpDialog is used to display help text (or any text in a dialog window). More...
 
class  TVirtualDragManager