Problem highlighting entity

I have this basic macro:

[pre]
Option Explicit
Public Sub SplitPoly()
Dim ent As AcadObject
Dim basePnt As Variant

On Error Resume Next

Call ThisDrawing.Utility.GetEntity(ent, basePnt, "Please choose an entity to split:")
If Err <> 0 Then
Err.Clear
Else
ent.Highlight
End If

End Sub
[/pre]

But once the macro has executed, the entity (polyline) I selected is not highlighted. I was expecting it to show dashed, as I get when I do this in lisp:

[pre]
(redraw ename 3)
[/pre]

What am I doing wrong?

 

You must set the Highlight-property to 'True' :
ent.Highlight True

Michel

 

hi

you have to give the parameter 'true' or 'false' with ent.Highlight to
give the input for turning highlight on or off.

==> ent.Highlight True

- alfred -

 

Thank you. I have this working. Can I ask you another question? As it is, it will pick any entity whether the entity is visible or not.

Is there a way to:

a) ensure the entity picked is a visible entity and not on a locked layer

b) ensure the entity is a polyline (ie: something that will be acceptable as a parameter to the "break" command).

??

Andrew

 

After an entity is picked, you might want to check if the layer is locked and whether the selected entity is a polyline. The sample should get you started. Be careful, there are two types of polylines (AcDbPolyline and AcDb2dPolyline), so might want to check both types.
Checking visibility works the same way: If ent.Visible=True then...


Public Sub SplitPoly()
Dim ent As AcadEntity
Dim basePnt As Variant

On Error Resume Next
ThisDrawing.Utility.GetEntity ent, basePnt, "Please choose an entity to split:"
If Err <> 0 Then
Err.Clear
Else
If ThisDrawing.Layers(ent.Layer).Lock = False And ent.ObjectName = "AcDbPolyline" Then
ent.Highlight True
End If
End If

End Sub

 

I did it like this:

[pre]
Option Explicit
Public Sub SplitPoly()
On Error Resume Next

Dim Layer As AcadLayer
Dim ent As AcadObject
Dim basePnt As Variant

InitUserPrompt

SelectEntity:
Call ThisDrawing.Utility.GetEntity(ent, basePnt, _
vbCrLf & "Please choose an entity to split:")
If Err.Number = 0 Then
' Entity must NOT be on a locked or frozen layer
Set Layer = ThisDrawing.Layers(ent.Layer)

If Layer.Lock = True Or Layer.Freeze = True Then
' We must try again!
Call UpdateUserPrompt(" This entity is on a locked or frozen layer!")
GoTo SelectEntity

' Must be valid entity type and the layer must be ON
ElseIf TypeOf ent Is AcadPolyline Or _
TypeOf ent Is AcadLWPolyline Or _
TypeOf ent Is Acad3DPolyline And _
Layer.LayerOn = True Then

Call ent.Highlight(True)

Else
' We must try again!
Call UpdateUserPrompt(" You must select a POLYLINE or 3D POLYLINE.")
GoTo SelectEntity

End If
End If

' Continue with macro

ResetUserPrompt

End Sub

Private Sub ResetUserPrompt()

ThisDrawing.Utility.Prompt (vbCrLf & "Command:")

End Sub

Private Sub UpdateUserPrompt(strPrompt As String)

ThisDrawing.Utility.Prompt (strPrompt)

End Sub

Private Sub InitUserPrompt()

ThisDrawing.Utility.Prompt (vbCrLf)

End Sub

[/pre]