# UCSDETECT System Variable [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [System Variables](Help%20System/GSTARCAD/2017/System%20Variables/(System%20Variables).md) → [U](Help%20System/GSTARCAD/2017/System%20Variables/U/(U).md) **Function Description:** The UCSDETECT system variable is used to control whether dynamic UCS acquisition is active or not. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 1 | | Range | 0,1 | **System Variable Value:** **0:**not active **1:**active --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md) · [GstarCAD 2018](../../../2018/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md) · [GstarCAD 2019](../../../2019/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md) · [GstarCAD 2020](../../../2020/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/U/UCSDETECT%20System%20Variable--27285cb4d41d.md)