Topics in this section

• CALCINPUT

  Controls whether mathematical expressions and global constants are evaluated in text and numeric entry boxes of windows and dialog boxes.

• CAMERADISPLAY

  Turns the display of camera objects on or off.

• CAMERAHEIGHT

  Specifies the default height for new camera objects.

• CANNOSCALE

  Sets the name of the current annotation scale for the current space.

• CANNOSCALEVALUE

  Returns the value of the current annotation scale.

• CAPTURETHUMBNAILS

  Specifies if and when thumbnails are captured for the Rewind tool.

• CBARTRANSPARENCY

  Controls the transparency of the constraint bars.

• CCONSTRAINTFORM

  Controls whether annotational or dynamic constraints are applied to objects.

• CDATE

  Stores the current date and time in decimal format.

• CECOLOR

  Sets the color of new objects.

• CELTSCALE

  Sets the current object linetype scaling factor.

• CELTYPE

  Sets the linetype of new objects.

• CELWEIGHT

  Sets the lineweight of new objects.

• CENTERMT

  Controls how grips stretch multiline text that is centered horizontally.

• CETRANSPARENCY

  Sets the transparency level for new objects.

• CHAMFERA

  Sets the first chamfer distance when CHAMMODE is set to 0.

• CHAMFERB

  Sets the second chamfer distance when CHAMMODE is set to 0.

• CHAMFERC

  Sets the chamfer length when CHAMMODE is set to 1.

• CHAMFERD

  Sets the chamfer angle when CHAMMODE is set to 1.

• CHAMMODE

  Sets the input method for CHAMFER

• CIRCLERAD

  Sets the default circle radius.

• CLASSICKEYS

  Sets shortcuts to pre-Windows AutoCAD shortcuts or Windows shortcuts.

• CLAYER

  Sets the current layer.

• CLEANSCREENSTATE

  Indicates whether the clean screen state is on or off.

• CLISTATE

  Indicates whether the command window is open or closed.

• CMATERIAL

  Sets the material of new objects.

• CMDACTIVE

  Indicates whether an ordinary command, transparent command, script, or dialog box is active.

• CMDDIA

  Controls the display of the In-Place Text Editor for the LEADER and QLEADER commands.

• CMDECHO

  Controls whether prompts and input are echoed during the AutoLISP command function.

• CMDINPUTHISTORYMAX

  Sets the maximum number of previous input values that are stored for a prompt in a command.

• CMDNAMES

  Displays the names of the active and transparent commands.

• CMLEADERSTYLE

  Sets the name of the current multileader style.

• CMLJUST

  Specifies multiline justification.

• CMLSCALE

  Controls the overall width of a multiline.

• CMLSTYLE

  Sets the multiline style that governs the appearance of the multiline.

• COMPASS

  Controls whether the 3D compass is on or off in the current viewport.

• CONSTRAINTBARDISPLAY

  Controls the display of constraint bars after you apply constraints and when you select geometrically constrained drawings.

• CONSTRAINTBARMODE

  Controls the display of geometrical constraints on constraint bars.

• CONSTRAINTINFER

  Controls whether the geometric constraints are inferred while drawing and editing geometry.

• CONSTRAINTNAMEFORMAT

  Controls the text format for dimensional constraints.

• CONSTRAINTRELAX

  Indicates whether constraints are enforced or relaxed when editing an object.

• CONSTRAINTSOLVEMODE

  Controls constraint behavior when applying or editing constraints.

• COORDS

  Controls the format and update frequency of coordinates on the status line.

• COPYMODE

  Controls whether the COPY command repeats automatically.

• CPLOTSTYLE

  Controls the current plot style for new objects.

• CPROFILE

  Displays the name of the current profile.

• CROSSINGAREACOLOR

  Controls the color of the selection area during crossing selection.

• CSHADOW

  Sets the shadow display property for a 3D object.

• CTAB

  Returns the name of the current (model or layout) tab in the drawing.

• CTABLESTYLE

  Sets the name of the current table style

• CULLINGOBJ

  Controls whether 3D subobjects that are hidden from view can be highlighted or selected.

• CULLINGOBJSELECTION

  Controls whether 3D objects that are hidden from view can be highlighted or selected.

• CURSORSIZE

  Determines the size of the crosshairs as a percentage of the screen size.

• CVPORT

  Displays the identification number of the current viewport.