A unit specifying how a screen overlay is sized and positioned relative to its parent.
| Member | Value | Description |
|---|---|---|
| eStkGraphicsScreenOverlayUnitPixels | 0 | The value is specified in pixels. |
| eStkGraphicsScreenOverlayUnitFraction | 1 | The value is specified as a fraction of the overlay's parent, where 0.0 is 0% and 1.0 is 100%. |





