# C [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) ## Topics - **CALCINPUT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CALCINPUT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CALCINPUT.md) - **CAMERADISPLAY System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CAMERADISPLAY%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CAMERADISPLAY.md) - **CAMERAHEIGHT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CAMERAHEIGHT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CAMERAHEIGHT.md) - **CANNOSCALE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CANNOSCALE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CANNOSCALE.md) - **CANNOSCALEVALUE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CANNOSCALEVALUE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CANNOSCALEVALUE.md) - [CBARTRANSPARENCY System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CBARTRANSPARENCY%20System%20Variable.md) - [CCONSTRAINTFORM System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CCONSTRAINTFORM%20System%20Variable.md) - **CDATE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CDATE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CDATE.md) - **CECOLOR System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CECOLOR%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CECOLOR.md) - **CELTSCALE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CELTSCALE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CELTSCALE.md) - **CELTYPE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CELTYPE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CELTYPE.md) - **CELWEIGHT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CELWEIGHT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CELWEIGHT.md) - [CENTERCROSSGAP System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTERCROSSGAP%20System%20Variable.md) - [CENTERCROSSSIZE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTERCROSSSIZE%20System%20Variable.md) - [CENTEREXE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTEREXE%20System%20Variable.md) - [CENTERLAYER System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTERLAYER%20System%20Variable.md) - [CENTERMARKEXE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTERMARKEXE%20System%20Variable.md) - **CENTERMT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CENTERMT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CENTERMT.md) - **CETRANSPARENCY System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CETRANSPARENCY%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CETRANSPARENCY.md) - **CHAMFERA System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CHAMFERA%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CHAMFERA.md) - **CHAMFERB System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CHAMFERB.md) - **CHAMFERC System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CHAMFERC%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CHAMFERC.md) - **CHAMFERD System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CHAMFERD%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CHAMFERD.md) - **CHAMMODE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CHAMMODE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CHAMMODE.md) - **CIRCLERAD System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CIRCLERAD%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CIRCLERAD.md) - **CLAYER System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CLAYER%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CLAYER.md) - **CLEANSCREENSTATE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CLEANSCREENSTATE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CLEANSCREENSTATE.md) - **CLISTATE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CLISTATE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CLISTATE.md) - **CMATERIAL System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMATERIAL%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMATERIAL.md) - **CMDACTIVE System Variable** — [General reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMDACTIVE%20(General%20Reference).md) · [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/CMDACTIVE.md) - **CMDDIA System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMDDIA%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMDDIA.md) - **CMDECHO System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMDECHO%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMDECHO.md) - **CMDINPUTHISTORYMAX System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMDINPUTHISTORYMAX%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMDINPUTHISTORYMAX.md) - **CMDNAMES System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMDNAMES%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMDNAMES.md) - **CMLEADERSTYLE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMLEADERSTYLE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMLEADERSTYLE.md) - **CMLJUST System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMLJUST%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMLJUST.md) - **CMLSCALE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CMLSCALE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CMLSCALE.md) - [CMLSTYLE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CMLSTYLE%20System%20Variable.md) - [COLORTHEME System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/COLORTHEME%20System%20Variable.md) - [COMPASS System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/COMPASS%20System%20Variable.md) - [CONSTRAINTBARDISPLAY System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CONSTRAINTBARDISPLAY%20System%20Variable.md) - [CONSTRAINTBARMODE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CONSTRAINTBARMODE%20System%20Variable.md) - [CONSTRAINTINFER System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CONSTRAINTINFER%20System%20Variable.md) - [CONSTRAINTNAMEFORMAT System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CONSTRAINTNAMEFORMAT%20System%20Variable.md) - [CONSTRAINTSOLVEMODE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CONSTRAINTSOLVEMODE%20System%20Variable.md) - **COORDS System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/COORDS%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/COORDS.md) - [COPYFORMAT System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/COPYFORMAT%20System%20Variable.md) - **COPYMODE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/COPYMODE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/COPYMODE.md) - **CPLOTSTYLE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CPLOTSTYLE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CPLOTSTYLE.md) - **CPROFILE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CPROFILE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CPROFILE.md) - **CROSSINGAREACOLOR System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CROSSINGAREACOLOR%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CROSSINGAREACOLOR.md) - **CTAB System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CTAB%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CTAB.md) - **CTABLESTYLE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CTABLESTYLE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CTABLESTYLE.md) - **CULLINGOBJ System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CULLINGOBJ%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CULLINGOBJ.md) - **CULLINGOBJSELECTION System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CULLINGOBJSELECTION%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CULLINGOBJSELECTION.md) - [CURSORREVERSE System Variable](Help%20System/GSTARCAD/2026/System%20Variables/C/CURSORREVERSE%20System%20Variable.md) - **CURSORSIZE System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CURSORSIZE%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CURSORSIZE.md) - **CVPORT System Variable** — [Alphabetical reference](Help%20System/GSTARCAD/2026/System%20Variables/C/CVPORT%20System%20Variable.md) · [General reference](Help%20System/GSTARCAD/2026/System%20Variables/CVPORT.md) [Original category](https://www.gstarcad.net/help/GstarCAD_2026_en-US/menu/systemVariables_Cgsv.html)