| U3dappli | U3dAppli must be used instead of UAppli for U3D applications |
| U3dbox | A container that places its children as planes in a 3D world |
| U3dmenu | A Control menu that makes it possible to control the U3dpos or a UBox interactively |
| U3dpos | 3D position of a component in a U3Dbox |
| U3dview | 3-Dimensional view, able to display UBox as planes in a 3D space |
| UAlertbox | Alertbox gadget |
| UAlpha | Alpha blending property |
| UAppli | The Application Context |
| UArgs | [impl] additive arglists passed as an argument to UGroup and subclasses |
| UBackground | Background property |
| UBar | UBar = horizontal toolbar or status bar |
| UBgcolor | Active Background Color Property |
| UBorder | Border decoration Property |
| UBox | Graphical "viewable" container |
| UBrick | Ubit Brick: base class: READ THIS FIRST! |
| UButton | Button widget |
| UCall | UCall and its template subclasses define a family of classes for adding callback functions and methods to other bricks |
| UCardbox | Card box (or Tabbed Pane) |
| UCDATASection | XML CDATASection |
| UCheckbox | Checkbox gadget |
| UChild | [impl] Internal implementation of a child node |
| UChildren | Child (or attribute) list |
| UChildwin | Child Window |
| UChoice | Exclusive selector for making UListbox and UTreebox |
| UColor | Active Color Property |
| UCombobox | Combo box gadget |
| UComment | XML Comment |
| UCompactEvents | For compacting mouse events |
| UCond | Base class for Ubit conditions |
| UConf | Configuration of the UAppli |
| UContext | [impl] UContext = a subcontext (not the first layer of the context cstack) and a base for UWinContext (the first layer of the cstack) |
| UCssParser | [impl] CSS parser for XML/HTML documents |
| UCssProps | [impl] precompiled CSS properties |
| UCssStyles | [impl] precompiled HTML Elements Styles |
| UCstr | Useful functions for C strings |
| UCtlmenu | Simple Control menu |
| UCursor | Mouse pointer cursor |
| UData | Base class for Viewable Objects |
| UDataProps | Useful information on UData objects that are being retrieved by UEvent::findData() or UEvent::findStr() |
| UDefaultErrorHandler | Default Error handler |
| UDialog | UDialog: (non iconifiable) dialog box |
| UDir | Directory |
| UDisp | Display Context |
| UDoc | Generic Document |
| UDocAttachment | Document attachment (image, stylesheet, etc.) |
| UDocbox | Document box gadget |
| UDocCreator | Document creator interface (intended to be subclassed) |
| UDocFactory | Document Factory: use this class to read documents |
| UDocSource | Document source (file, buffer, etc.) |
| UDouble | Active Double |
| UEdit | Text editing and caret controller |
| UError | Error exception |
| UErrorFlow | Error Flow |
| UErrorHandler | Error handler |
| UEvent | Ubit Event class |
| UEventFlow | [Impl] Ubit Event Flow |
| UFileCache | File cache |
| UFileInfo | File info |
| UFileMode | File mode |
| UFileStat | File status returned by functions that open files |
| UFileType | File type |
| UFinder | File finder |
| UFinderCom | [Impl] UFinder communication (remote file access by using ssh, etc) |
| UFinderControls | [Impl] UFinder controls |
| UFinderDir | [Impl] A directory in the UFinder |
| UFinderHost | [Impl] A host in the UFinder |
| UFinderListener | UFinder Listener |
| UFlag | Flagging conditions |
| UFlagdef | Defines a flag that is inherited in the scene graph |
| UFlatbutton | Flat Button gadget |
| UFlatDoc | < Base of flat documents that just contains flat text or an image see also: UXmlDoc for XML "hierarchical" documents |
| UFloat | Active Float |
| UFlowbox | UFlowbox = Box with a Flow Layout (similar to an HTML page) |
| UFont | Active Font Property |
| UFontDesc | [impl] Internal representation for fonts |
| UFontFamilyConf | Font Family |
| UFrame | UFrame: iconifiable toplevel window |
| UGraph | Class for drawing graphics in UBox view(s) |
| UGroup | Logical "grouping" container |
| UHalign | Horizontal Layout policy |
| UHbox | UHbox = horizontal Box |
| UHeight | Height policy |
| UHeightControl | Interactive Height-Resizer |
| UHmargin | Horizontal Margin property |
| UHspacing | Horizontal Spacing property |
| UHtmlCreator | [impl] HTML Creator |
| UHtmlGrammar | HTML Grammar |
| UIcon | UIcon (for UIconbox) |
| UIconbox | Icon box |
| UIfscale | Scale conditions (for semantic zooming) |
| UIma | Image Object |
| UInbuf | UInbuf |
| UInput | UInput object fires callbacks when a file or a socket gets data |
| UInteger | Active Integer |
| UIObuf | UIObuf |
| UItem | Item Button widget (a kind of button that is used in UListbox(es)) |
| ULabel | Label widget |
| ULinkbutton | Link Button gadget |
| UListbox | List gadget |
| UMargins | Box margins |
| UMenu | UMenu: pulldown or cascaded menu |
| UMenubar | Menu bar |
| UMenuCtrl | Implementation |
| UMessage | Ubit Message |
| UMessagePort | Ubit Message Port |
| UMessagePortMap | Impl |
| UMode | Objects' modes |
| UMService | UMService: Ubit Mouse/Message Service |
| UMService::BrowseReply | See browseUMServers() |
| UMService::ResolveReply | See resolveUMServer() |
| UMSrequest | UMS Request (from a Client to the UMS server) |
| UNatAppli | Implementation: Native Application Context |
| UNatDisp | Implementation: Native Display Context |
| UNatGraph | Implementation: Native Graphics Context |
| UNatIma | Native image (encapsulates the corresponding X resources) |
| UNatWin | Implementation: Native Window |
| UNotCond | Negation of a Ubit condition |
| UNumber | Active Number base class |
| UOn | Event conditions |
| UOption | Specification and retreiving of non standard options on the command line |
| UOrient | Object Orientation |
| UOutbuf | UOutbuf |
| UPane | [Impl] base class for creating UScrollpane |
| UPaneView | Pane View Renderer |
| UParent | [impl] Internal implementation of a parent node |
| UParents | Parent list |
| UPix | Pixmap Image object |
| UPlacement | Constraints for Window Placement |
| UPluginDoc | < Documents that needs a plugin to be displayed |
| UPopmenu | UPopmenu: Contextual Menu |
| UPos | Position property |
| UProcessingInstruction | XML ProcessingInstruction |
| UProp | Base class for Graphical Properties |
| UPropdef | Defines a property that is inherited in the scene graph |
| UProps | Set of properties |
| UPropval | Gets the value of an inherited property |
| URadiobutton | Radio Button gadget |
| URadioSelect | Exclusive selector for selecting boxes (eg |
| URegion | Rectangular Region |
| UScale | Scale property |
| UScrollbar | Scrollbar gadget |
| UScrollbarView | Scrollbar View Renderer |
| UScrollpane | A box with (optionnal) scrollbars that manages a viewport |
| USepar | Separator gadget |
| UServerSocket | UServerSocket |
| USlider | Slider gadget |
| USliderButton | Slider button (used by USlider) |
| USliderbuttonStyle | USliderbutton for scrollbars |
| USocket | Ubit Simple Sockets |
| USourceProps | Event Properties of the Source & Source View |
| USpinbox | Spinbox gadget |
| UStatusbar | Status bar |
| UStr | Active String class |
| UStyle | Compiled Object Style |
| UStyleParser | Style Parser |
| UStyleProps | [impl] precompiled style properties |
| USymbol | Graphical Symbols |
| UTabbutton | Tab Button widget (for tabbed panes, |
| UTable | UTable = class for creating (simplified) HTML like tables |
| UTableView | TableView Renderer see also: UTable |
| UTcell | Table Cell |
| UTextarea | Textarea widget: multiple line editor |
| UTextbox | Textbox gadget: base class for handling text |
| UTextfield | Textfield widget: single line editor |
| UTextSelection | Text selection |
| UTimer | UTimer object fires callbacks after a given delay |
| UTrow | Table Row |
| UUpdate | How to update UGroup, UBox, UWin objects and subclasses |
| UValign | Vertical Layout policy |
| UVbox | UVbox = vertical Box |
| UView | Box View |
| UViewStyle | Specifies the View Style of an UBox |
| UVmargin | Vertical Margin property |
| UVspacing | Vertical Spacing property |
| UWidth | Width policy |
| UWidthControl | Interactive Width-Resizer |
| UWin | Base class for windows and menus (abstract class) |
| UWinContext | [impl] UWinContext = the first layer of the context cstack |
| UWinGraph | [impl] internal class for drawing the content of Ubit objects |
| UXmlCreator | [impl] XML Creator |
| UXmlDoc | XML Doc |
| UXmlDocType | XML DocType |
| UXmlGrammar | XML Grammar |
| UXmlGrammars | List of XML Grammars |
1.4.0