# SCREENSIZE System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [S](Help%20System/GSTARCAD/2026/System%20Variables/S/(S).md) ## Function Description: The SCREENSIZE system variable is used to store the size(X and Y) of the current viewport by pixels. (Read-Only) | | | | --- | --- | | Type | 2D point | | Saved in | Not saved | | Initial value | Unknown | --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Sgsv/SCREENSIZE.html) · © Gstarsoft Co., Ltd.