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| ArcObjects Help for .NET developers > ArcObjects namespaces > EngineCore > EngineCore Library Contents (ArcObjects .NET 10.5 SDK) | 
| Interface | Description | 
|---|---|
| IGraphicTracker | Provides access to members that set the state of a Graphic Tracker object | 
| IGraphicTrackerSymbol | An identifier interface for tracker a symbol. | 
| IPackageFile | Provides access to members that work with package files. | 
| CoClass or Class | Description | 
|---|---|
| GraphicTracker | A collection of Graphics that will be displayed on a Map or Globe | 
| PackageFile | An object for holding package files. | 
| Enumeration | Description | 
|---|---|
| esriGTElevation | Indicates the elevation mode that will be used when rendering the graphic in 3D. | 
| esriGTOrientation | Indicates the orientation mode of the graphic (only applies to points). | 
| esriGTScale | Indicates the scaling method applied to the graphic. |