# CONSTRAINTBARDISPLAY System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [C](Help%20System/GSTARCAD/2021/System%20Variables/C/(C).md) ## Function Description: The CONSTRAINTBARDISPLAY system variable is used to control the display of constraint bar for the following geometric constraint application and the display of hidden constraint for selected objects. | | | | --- | --- | | Type | Bitecode | | Saved in | Registry | | Initial value | 3 | | Range | 0 \~ 3 | ## System Variable Value: **0:** automatically hide constraint bar after applying geometric constraint **1:** display constraint bar for the selected geometrically constrained objects **2:** after selected constrained objects, all hidden constrained objects display no matter geometric constrains or dimension constrains --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md)