Specifies whether the shadow display property is enabled for the object.
Supported platforms: Windows only
VBA:
object.EnableShadowDisplay
Type: ShadowDisplay
The object to which this property applies.
Read-only: No
Type: Long
This property is always set to 1 for 3D solid objects. It can be either 0 or 1 for 2D objects that can have thickness. For 2D objects whose thickness is non-zero, this property returns 1. For 2D objects whose thickness is 0, it returns 0. This property always returns 0 for 2D objects that are not capable of thickness, such as an RasterImage object.
VBA:
Sub Example_ShadowDisplay() ' This example creates a cone in model space and changes its shadow display setting. Dim coneObj As Acad3DSolid Dim centerPoint(0 To 2) As Double Set coneObj = ThisDrawing.ModelSpace.AddCone(centerPoint, 5, 20) Dim shadowObj As IAcadShadowDisplay Dim EnableShadowDisplayStatus As Long Dim ShadowDisplay As AcShadowDisplayType Dim displaySettingDesc As String Set shadowObj = coneObj EnableShadowDisplayStatus = shadowObj.EnableShadowDisplay ShadowDisplay = shadowObj.ShadowDisplay displaySettingDesc = DescribeShadowDisplay(ShadowDisplay) If EnableShadowDisplayStatus = 1 Then MsgBox "Shadow display is currently enabled for this object." & vbCr & _ "Current shadow display setting is: " & displaySettingDesc Else MsgBox "Shadow display is disabled for this object." End If shadowObj.ShadowDisplay = acCastsShadows displaySettingDesc = DescribeShadowDisplay(shadowObj.ShadowDisplay) MsgBox "New shadow display setting is: " & displaySettingDesc End Sub Private Function DescribeShadowDisplay(acShadow As AcShadowDisplayType) As String Select Case acShadow Case acCastsAndReceivesShadows: DescribeShadowDisplay = "cast and receive shadows." Case acCastsShadows: DescribeShadowDisplay = "cast shadows only." Case acReceivesShadows: DescribeShadowDisplay = "receive shadows only." Case acIgnoreShadows: DescribeShadowDisplay = "ignore shadows." End Select End Function
Visual LISP:
(vl-load-com) (defun c:Example_ShadowDisplay() ;; This example creates a cone in model space and changes its shadow display setting. ;; AutoLISP cannot cast COM objects to different types, so you must change the Shadow Display ;; property via DXF code values. (setq acadObj (vlax-get-acad-object)) (setq doc (vla-get-ActiveDocument acadObj)) (setq centerPoint (vlax-3d-point 0 0 0)) (setq modelSpace (vla-get-ModelSpace doc)) (setq coneObj (vla-AddCone modelSpace centerPoint 5 20)) (setq ed (entget (vlax-vla-object->ename coneObj))) (setq shadowDisplay (assoc 284 ed)) (if (= shadowDisplay nil) (setq shadowDisplay 0) (setq shadowDisplay (cdr shadowDisplay)) ) (setq displaySettingDesc (DescribeShadowDisplay ShadowDisplay)) (alert (strcat "Shadow display is currently enabled for this object." "\nCurrent shadow display setting is: " displaySettingDesc)) ;; Before changing the value, you should validate the object is not a Line or some other ;; 2D object that does not support shadows. (setq newShadowDisplay acCastsShadows) (if (/= (assoc 284 ed) nil) (setq ed (subst (cons 284 acCastsShadows) (assoc 284 ed) ed)) (setq ed (append ed (list (cons 284 acCastsShadows)))) ) (entmod ed) (entupd (vlax-vla-object->ename coneObj)) (setq displaySettingDesc (DescribeShadowDisplay newShadowDisplay)) (alert (strcat "New shadow display setting is: " displaySettingDesc)) ) (defun DescribeShadowDisplay (acShadow / ) (cond ((= acShadow acCastsAndReceivesShadows) "cast and receive shadows.") ((= acShadow acCastsShadows) "cast shadows only.") ((= acShadow acReceivesShadows) "receive shadows only.") ((= acShadow acIgnoreShadows) "ignore shadows.") ) )