Using Programming Languages other than VBA

Sub Example_ArrowHeadType()
	' This example creates a Leader object in model space with an associated Annotation
	' and then alters the visible appearance (shape) of its arrowhead
	' using the ArrowHeadType property

	Dim leaderObj As AcadLeader, MTextObj As AcadMText
	Dim points(0 To 8) As Double, insertionPoint(0 To 2) As Double, iTextWidth As Double
	Dim leaderType As Integer
	Dim annotationObject As Object
	Dim textString As String

	' Define the new MText object
	textString = "Hello, World."
	insertionPoint(0) = 5: insertionPoint(1) = 5: insertionPoint(2) = 0
	iTextWidth = 2

	' Create the MText object in model space
	Set MTextObj = ThisDrawing.ModelSpace.AddMText(insertionPoint, iTextWidth, textString)

	' Data for Leader
	points(0) = 0: points(1) = 0: points(2) = 0
	points(3) = 4: points(4) = 4: points(5) = 0
	points(6) = 4: points(7) = 5: points(8) = 0
	leaderType = acLineWithArrow
	 
	' Create the Leader object in model space and Associate new MText object
	' with new Leader by making the MText object the annotation for the Leader
	Set annotationObject = MTextObj
	Set leaderObj = ThisDrawing.ModelSpace.AddLeader(points, annotationObject, leaderType)
	ThisDrawing.Application.ZoomAll

	' Read and display current arrowhead type
	MsgBox "The arrowhead type for this object is: " & leaderObj.ArrowheadType

	' Alter the arrowhead type property for this object
	leaderObj.ArrowheadType = acArrowBoxBlank
	ThisDrawing.Application.ZoomAll

	' Read and display current arrowhead type
	MsgBox "The arrowhead type for this object is now set to: " & leaderObj.ArrowheadType
End Sub