Using Programming Languages other than VBA

Sub Example_ArrowHead2Block()
	' This example creates an aligned dimension object in model space
	' and then alters the visible appearance (shape) of the arrowhead
	' using the ArrowHeadBlock property.
	' Use the ArrowHeadBlock property to set the arrowhead to an existing
	' block object containing a custom Circle object

	Dim DimPointAngularObj As AcadDim3PointAngular
	Dim AngleVertex(0 To 2) As Double
	Dim FirstPoint(0 To 2) As Double, SecondPoint(0 To 2) As Double
	Dim TextPoint(0 To 2) As Double
	Dim BlockName As String
   
	' Define the new Dim3PointAngular object
	AngleVertex(0) = 0: AngleVertex(1) = 0: AngleVertex(2) = 0
	FirstPoint(0) = 2: FirstPoint(1) = 2: FirstPoint(2) = 0
	SecondPoint(0) = 1: SecondPoint(1) = 4: SecondPoint(2) = 0
	TextPoint(0) = 6: TextPoint(1) = 6: TextPoint(2) = 0

	' Create the new Dim3PointAngular object in model space
	Set DimPointAngularObj = ThisDrawing.ModelSpace.AddDim3PointAngular(AngleVertex, FirstPoint, SecondPoint, TextPoint)
	ZoomAll

	' Set arrowhead type to user-defined to allow
	' the use of a block as the new arrowhead
	'dimObj.ArrowheadType = acArrowUserDefined
	DimPointAngularObj.Arrowhead1Block = "CBlock"
	DimPointAngularObj.Arrowhead2Block = "CBlock"
	ZoomAll

	' Read and display current arrowhead block name
	BlockName = DimPointAngularObj.Arrowhead2Block

	MsgBox "The arrowhead block name for this object is: " & BlockName

End Sub