# PICKBOX [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [System Variables](Help%20System/GSTARCAD/2017/System%20Variables/(System%20Variables).md) → [P](Help%20System/GSTARCAD/2017/System%20Variables/P/(P).md) **Function Description:** The PICKBOX system variable is used to set the target height of object selection in pixes. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 3 | **Note:** if specified PICKBOX to be 0, the preview of object selection is unavailable. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/P/PICKBOX--e12e196f2575.md) · [GstarCAD 2018](../../../2018/System%20Variables/P/PICKBOX--e12e196f2575.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/P/PICKBOX--e12e196f2575.md) · [GstarCAD 2020](../../../2020/System%20Variables/P/PICKBOX--e12e196f2575.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/P/PICKBOX--e12e196f2575.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/P/PICKBOX--e12e196f2575.md)