| AutoGizmoC | Auto gizmo class |
| BBox2C | Bounding box class |
| ChooseImporterCommonDialogC | Choose Importer Dialog Class |
| ClassDescC | Plugin Class Descriptor class |
| ClassIdC | Plugin Class ID |
| ColorC | RGBA color class |
| ColorCommonDialogC | Color Dialog Class |
| CommonDialogI | Common Dialog Base Class |
| ControllerC | Value controller class |
| DataBlockI | Plugin data interface |
| DecomposeAffineC | Decomposes a matrix into affine parts |
| DeviceContextC | Device context class |
| DeviceFeedbackC | Device Feedback class |
| DeviceInterfaceI | Device interface |
| DllInterfaceC | DLLInterface class |
| EditableI | Editable interface |
| EffectI | The effect interface |
| FactoryC | Plugin class factory class |
| FileHandleC | File handle class |
| FileKeyC | File Keyframe class for controller |
| FileListC | File list class |
| FloatKeyC | Float Keyframe class for controller |
| GizmoI | Gizmo interface |
| GraphicsBufferI | Graphics buffer class |
| GraphicsDeviceI | Graphics device class |
| GraphicsViewportI | Device interface for graphics viewport |
| GUIDrawInterfaceI | GUI Draw Interface |
| ImageResampleC | Image Resampler class |
| ImportableI | Importable file interface |
| ImportableImageI | Importable image interface |
| ImportInterfaceC | Import interface class |
| KeyC | Keyframe class for controller |
| LayerC | Composition Layer class |
| LoadC | Demopaja input stream |
| Matrix2C | 2x3 matrix class |
| Matrix3C | 3x4 matrix class |
| OpenGLBufferC | OpenGL graphics buffer class |
| OpenGLViewportC | Device interface for OpenGL |
| ParamColorC | Color parameter class |
| ParamFileC | File parameter class |
| ParamFloatC | Float parameter class |
| ParamI | Parameter class |
| ParamIntC | Integer parameter class |
| ParamTextC | Text parameter class |
| ParamVector2C | 2D vector parameter class |
| ParamVector3C | 3D vector parameter class |
| QuatC | Quaternion class |
| SaveC | Demopaja output stream |
| SceneC | Composition scene class |
| SuperClassIdC | Plugin super class ID |
| TimeContextC | Time context class |
| TimeSegmentC | Time segment class |
| UndoC | Undo object class |
| Vector2C | 2D Vector class |
| Vector3C | 3D vector class |