Here are the classes, structs, unions and interfaces with brief descriptions:
  AsyncBrowseForFileTask | An Asyncronous task that browses for a file on disk |
| AsyncMidiFileLoadTask | An Asyncronous task that load a MIDI file |
| AsyncTask | An Asyncronous task |
| AudioMeter | AudioMeter widget |
| AuxEffect | Auxilliary Bus Container for multiple InsertEffect |
| BusRouter | BusRouter Structrure that hold the aux send level as well as the pre/post flag |
| Button | Stateless transient button |
| ControlSignalSource | Modulation source |
| DnDArea | DnDArea widget |
| Element | Common Elements base class |
| Event | Event types |
| EventProcessor | Event processor |
| FileFormat | Predefined format file types |
| FileSelector | FileSelector widget |
| Image | Image widget |
| InsertEffect | Insert FX Generic structrure that define an insert FX |
| Keygroup | A range of keys and velocities |
| Knob | Knob widget |
| Label | Text label widget |
| Layer | A layer of sounds |
| Mapper | Predefined mapper types |
| Menu | Menu widget |
| MidiEvent | A Midi Event |
| MidiSequence | A Midi sequence that represent a midi file |
| ModifierKeys | |
| MultiStateButton | MultiStateButton widget |
| NumBox | Numeric spinner label |
| OnOffButton | 2 states boolean button |
| Oscillator | The Synthesis primitive |
| Panel | Panel widget |
| ParamWidget | Base class for ParamWidget |
| Part | A Part |
| Program | A Patch that represent an monotimbral instrument |
| RectanglePlacement | |
| SampledReverb | SampledReverb |
| SignalConnection | Connection definition for a modulation |
| Slider | Horizontal or vertical slider widget |
| Synth | The Master Element in the synthesis tree |
| Table | Table widget |
| Unit | Predefined unit types |
| Viewport | Viewport widget |
| WaveView | WaveView widget |
| Widget | Widget base class |
 XY | XY widget |