# PICKBOX [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [P](Help%20System/GSTARCAD/2026/System%20Variables/P/(P).md) ## Function Description: The PICKBOX system variable is used to set the target height of object selection in pixels. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 3 | **Note:** if specified PICKBOX to be 0, the preview of object selection is unavailable. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Pgsv/PICKBOX.html) · © Gstarsoft Co., Ltd.