# CONSTRAINTBARMODE System Variable [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [System Variables](Help%20System/GSTARCAD/2020/System%20Variables/(System%20Variables).md) → [C](Help%20System/GSTARCAD/2020/System%20Variables/C/(C).md) **Function Description:** The CONSTRAINTBARMODE system variable is used to control the display of geometric constrains in constrained bar. | | | | --- | --- | | Type | Bitcode | | Saved in | Registry | | Initial value | 4095 | | Range | 0 \~ 4095 | **System Variable Value:** **1:** horizontal **2:** vertical **4:** perpendicular **8:** parallel **16:**tangent **32:** smooth **64:** coincident **128:** concentric **256:** colinear **512:** symmetric **1024:**equal **2048:** fix --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md) · [GstarCAD 2017](../../../2017/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md) · [GstarCAD 2018](../../../2018/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md) · [GstarCAD 2019](../../../2019/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md) · [GstarCAD 2021](../../../2021/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable--a4f56830249d.md)