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

[detail level 123]

LightWave95
LWNodalAccess_t
st_LWShaderAccess
LightWave96
LWNodalAccess_t
st_LWRayTraceData
st_LWShaderAccess
LWBUF
lwpp	Contain Carbon specific code for the OSX XCode version platform_carbon.cpp lwpp
@0
@5
lw10
LWImageFilterHandler
st_LWPixelFilterHandler
lwsdk10
st_LWServerInfo
LWSDK95_1
st_LWNodeHandler
AboutPanel
AnimLoaderAdaptor
AnimLoaderHandler
AutoMutex
BackdropInfo	Wrapper for LWBackdropInfo
BaseFileRequest	Virtual base class for all file requesters
BaseMonitor
CameraAdaptor
CameraEvaluator
CameraHandler
CameraInfo
Channel
ChannelAdaptor
ChannelGroup
ChannelHandler
ColourManager
ColourPicker
comRingCommunicator
ContextMenu
ContextMenuCallback	Base class for context menus
ControlSizer	Sizer containing a single PanelControl
CustomGlobal
CustomObjAccess
CustomObjAdaptor	Wrapper for an CustomObjectHandler
CustomObjHandler	Base class for CustomObject plugins
Directory
DirInfo
DisplacementAccess
DisplacementAdaptor	Wrapper for an DisplacementHandler
DisplacementHandler	Base class for Displacement plugins
doPop	PopCount callback for LightWave
DynamicContextMenu
DynamicSizer
DynaMonitor
EdgeScanner
Envelope
Envelopes
EnvironmentAdaptor
EnvironmentHandler
exception
ExtendedPopUp
FastEdgeScanner
FastPointScanner
FastPolyScanner
File
FileName	Manages file names that are content directory aware
FileRequest2
FileType
FrameBufferAdaptor
FrameBufferHandler
genericGlobal
GizmoAdaptor	Wrapper for Gizmos
GizmoDrawAdaptor	Wrapper for Gizmos that only perform drawing
GizmoDrawHandler	Base class for Gizmos that only perform drawing
GizmoHandler	Base class for Gizmos
GlobalBase	Template class base for any kind of global that will be AQUIREd/RELEASEd,
GlobalMemory
HorizontalSizer	A sizer with components lined up horizontally
Image
ImageFilterAdaptor	Wrapper for an ImageFilterHandler
ImageFilterHandler	Class for Imagefilters
ImageLoaderAdaptor
ImageLoaderHandler
ImageLoaderProtocol	Pushes an image to LW using the LWImageProtocol. Only useful for image loaders or animation loaders
ImageSaverAdaptor
ImageSaverHandler
ImageUtil
InstanceAdaptor	Wrapper for InstanceHandler
InstanceHandler	Base class for (almost) any LW plugin
InstanceUpdate
InterfaceAdaptor	Wrapper for InterfaceHandler
InterfaceHandler	Base class for a Lightwave UI
InterfaceInfo
ItemAdaptor	Wrapper for ItemHandler
ItemHandler	LW ItemFuncs class extension
ItemInfo
ItemMotionAdaptor
ItemMotionHandler
LayoutGenericAdaptor
LayoutGenericHandler
LayoutGenericLWPanelHandler
LayoutGenericXPanelHandler
LayoutNonModalGenericAdaptor
LayoutToolAdaptor	Wrapper for a Layout Tool
LayoutToolHandler	Base class for Layout Tool plugins
LightAdaptor	Wrapper for an LightHandler
LightHandler	Class for Lights
LightWave	Wrap functions related to the LightWave system
LimboComRing	Simple helper class for the limbo state
LoadState	Wrapper for a LW save state
LogPanel
LWDrawFuncs
LWDynaValue	Dynamic Values
LWImageProtocol_V2
LWImageProtocol_V3
LWItem
LWItemCallback	Provide callback functions for LW Items in XPanels..
LWItemTracker	This class tracks the IDs of LW items, especially related to the LWItemFuncs callbacks
LWMessage	Wrapped LWMessageFuncs
LWMTUtil
LWMTUtil9
LWMTUtil_Pre9
LWNode
LWNodeInput	Node Input
LWNodeOutput
LWNodeUtility
LWPanel
LWPanelAdaptor
LWPanelCallbacks
LWPanelCameraAdaptor
LWPanelCameraHandler
LWPanelChannelAdaptor
LWPanelChannelHandler
LWPanelControlCallBacks
LWPanelCustomObjAdaptor
LWPanelCustomObjHandler
LWPanelDisplacementAdaptor
LWPanelDisplacementHandler
LWPanelEnvironmentAdaptor
LWPanelEnvironmentHandler
LWPanelImageFilterAdaptor
LWPanelImageFilterHandler
LWPanelInterface
LWPanelItemMotionAdaptor
LWPanelItemMotionHandler
LWPanelListCallBacks
LWPanelMasterAdaptor
LWPanelMasterHandler
LWPanelMultiListControlCallBacks	Callbacks for multi-line list boxes
LWPanelPixelFilterAdaptor
LWPanelPixelFilterHandler
LWPanelTreeControlCallBacks
LWPanelVolumetricAdaptor	Adaptor class for LWPanelVolumetricHandler
LWPanelVolumetricHandler	Class for Volumetric Handler with an LWPanels
LWRaster
LWServer
LWSurface
ManagedPanel
MasterAdaptor	Wrapper for an MasterHandler
MasterHandler
Matrix4x4
MeshEditOperator
MeshInfo
MeshPointScan	Base Class for Point Scanners
MeshPolygonScan	Base Class for Polygon Scanners
MissingGlobal
ModelerCommand
ModelerCommandAdaptor
ModelerState
Monitor	Wrapped LWLMonFuncs
MTUtilBase
Nameable	Base class for items that can be named. Will store the name locally in a copy
nGlobalBase
NodeAdaptor
NodeEditor
NodeHandler
NodeInputHelper
ObjectInfo
OSFileRequest	OS specific file requester
PanelControl
PanelControlAdaptor	Class to adapt callbacks for Panel controls on a LW Panel
PanelTreeNode
ParticleServices
PixelFilterAdaptor
PixelFilterHandler
Point3
PointScanner
PolyScanner
PopCmdCallback
PopUpCallback	Base class for PopUpCallbacks
PresetCollection
PresetEntry
PresetHandler
Preview
PreviewCallbacks
Qualifier	Used to extract information from an input qualifier
Reference
ReferenceCounted
RenderAdaptor	Wrapper for RenderHandler
RenderHandler
RootNode
SaveState	Wrapper for a LW save state
SceneInfo	Provides information about the currently loaded scene
SceneObjectReference	Provide callback functions for LW Items in XPanels..
SceneObjects
ServerInfo
ServerInfo10
ShaderAdaptor	Wrapper for an ImageFilterHandler
ShaderHandler	Class for Shaders
ShadingEvaluator	A base clasee for shaders that evaluate depending on light samples
ShutdownHandler
SimpleContextMenu
SimpleMonitor
SimplePreset
Sizer	Virtual base class for all Sizers
st_lwcolorspacefuncs
StartupHandler
Stat	Wrapper to extract stats from a file
Storeable
StyledItemCallback	Provide callback functions for LW Items in XPanels..
SurfaceReference	Provide callback functions for LW Items in XPanels..
Texture	A Texture is a set of TextureLayer that drive a parameter
TextureAdaptor	Wrapper for an ImageFilterHandler
TextureEditor
TextureHandler	Class for Procedural Textures
TextureLayer
Thread
ThreadGroup
ThreadUtils
TimeInfo
Timer	Adds timer based events to LightWave
to_lower
TransientGlobalBase	Template class base for any TRANSIENT global
Vector3
VerticalSizer	A sizer with components lined up vertically
VMapCallbacks
VolumetricAccess
VolumetricAdaptor	Wrapper for an VolumetricHandler
VolumetricHandler	Class for Volumetric plugins
VParm	The Variant Parameter Class Wrapper
XPanel	Wrapper for a LWXPanel
XPanelAdaptor
XPanelCameraAdaptor
XPanelCameraHandler
XPanelChannelAdaptor
XPanelChannelHandler
XPanelCustomObjAdaptor
XPanelCustomObjHandler
XPanelDisplacementAdaptor
XPanelDisplacementHandler
XPanelEnvironmentAdaptor
XPanelEnvironmentHandler
XPanelFuncs	Wrapper for LWXPanelFuncs
XPanelImageFilterAdaptor
XPanelImageFilterHandler
XPanelInterface	Base class for all plugins that use an XPanels user interface
XPanelItemMotionAdaptor
XPanelItemMotionHandler
XPanelLightAdaptor
XPanelLightHandler
XPanelMasterAdaptor
XPanelMasterHandler
XPanelNodeAdaptor
XPanelNodeHandler
XPanelPixelFilterAdaptor
XPanelPixelFilterHandler
XPanelShaderAdaptor
XPanelShaderHandler
XPanelTextureAdaptor
XPanelTextureHandler
XPanelView	Base for classes that can handle XPanel view data
XPanelVolumetricAdaptor
XPanelVolumetricHandler
XPDrawArea
std	STL namespace
cocFileRequest
DIR_
dirent