| AddReferencedMask(HeifImageHandle) | Adds a referenced mask to the region geometry. |
| AddReferencedMask(HeifImageHandle, Int32, Int32, Int64, Int64) | Adds an referenced mask to the region geometry. |
| AddReferencedMask(HeifItemId, Int32, Int32, Int64, Int64) | Adds a referenced mask to the region geometry. |