# Python class TGIS_Lock:
| Name | Visibility | Description | |
|---|---|---|---|
| Extent | public | Extent locked. | |
| Internal | public | Reserved for internal use. | |
| Internal2 | public | Reserved for internal use. | |
| None_ | public | Unlocked. | |
| Projection | public | Extent is locked and projection transformations are disabled. | |