Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12]

CSoXt	Takes care of Xt initialization and event dispatching
CSoXtComponent	Base class for all GUI components
CSoXtConstrainedViewer	Superclass for viewers with constrains on the viewpoint
▼CSoXtCursor	Used to set cursors for GUI components
CCustomCursor	The SoXtCursor::CustomCursor class is used to specify bitmap data for SoXtCursor custom cursors
CSoXtDevice	Base class for the translation devices
CSoXtExaminerViewer	3D-model examination viewer
CSoXtFlyViewer	Implements controls for moving the camera in a "flying" motion
CSoXtFullViewer	Adds some user interface components to the viewer canvas
CSoXtGLWidget	Manages OpenGL contexts
CSoXtKeyboard	Keyboard input device abstraction
CSoXtMouse	Mouse input device abstraction
CSoXtObject	Common superclass for all SoXt component classes
CSoXtPlaneViewer	For examining 3D models by moving the camera in orthogonal planes
CSoXtRenderArea	Adds scene graph handling and event management
CSoXtViewer	Top level base viewer class