Widget — define a new widget instance

Script — associate code with a widget

BindEvent — associate code with an event

InvokeMethod — make a method call on a widget

WidgetReference — find an existing widget instance

SetWidgetReference — add a widget to the widget registry

UnsetWidgetReference — remove a widget from the widget registry

PropertyValue — get a widget property value

SetPropertyValue — set a widget property value

WidgetGroup — specify layout settings

WidgetAlign  ▪  WidgetFill  ▪  WidgetSpace

SymbolicGUIKitXMLToWidget — convert GUIKitXML to a Widget expression

WidgetToSymbolicGUIKitXML — convert a Widget expression to GUIKitXML

$GUIPath — list the directories to search for interface files