A search context implementation for Scene search engines. All methods that are called on a Scene search engine, and expect a ISearchContext, receive an object of this type.
| engineScope | An enum that identifies the scope of the current search. This property is automatically set to Scene.EngineScope. |
| guid | A unique identifier for this search context. |
| requiredTypeNames | An IEnumerable of strings that contains the type name constraints for this search. |
| requiredTypes | An IEnumerable of types that contains the type constraints for this search. |
| rootProperty | The root HierarchyProperty on which the search is started. |