| Class | Description | |
|---|---|---|
 | WpfImageViewerUndoMonitor | The undo monitor that monitors changes in the WpfImageViewer object. |
| WpfVisualToolUndoAction | Undo action that stores information about image changed with visual tool. |
| WpfVisualToolUndoMonitor | Undo monitor that monitors the WpfVisualTool object and adds undo action to an undo manager if WpfVisualTool changed an image. |