# DWGCHECK System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2026/System%20Variables/D/(D).md) ## Function Description: The DWGCHECK system variable is used to check whether there exists potential problem when opening drawings. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 1 | | Range | 0,1,2,3 | ## System Variable Value: **0:** if a drawing that you try to open has a potential problem, you are warned before the drawing is opened **1:** if a drawing that you try to open has a potential problem, or if it was saved by an application other than one based on RealDWG, you are warned before the drawing is opened **2:** if a drawing that you try to open has a potential problem, you are notified at the Command prompt **3:** if a drawing that you try to open has a potential problem, you are notified at the Command prompt. If the drawing has a potential problem and the drawing was saved by an application other than one based on RealDWG, you are warned before the drawing is opened --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Dgsv/DWGCHECK.html) · © Gstarsoft Co., Ltd.