Using Programming Languages other than VBA

Sub Example_AltTextSuffix()
   ' This example creates an aligned dimension in model space and
   ' uses AltTextSuffix to allow the user to change the text suffix for the
   ' alternate dimension

	Dim dimObj As AcadDimAligned
	Dim point1(0 To 2) As Double, point2(0 To 2) As Double
	Dim location(0 To 2) As Double
	Dim suffix As String

	' Define the dimension
	point1(0) = 0: point1(1) = 5: point1(2) = 0
	point2(0) = 5: point2(1) = 5: point2(2) = 0
	location(0) = 5: location(1) = 7: location(2) = 0

	' Create an aligned dimension object in model space
	Set dimObj = ThisDrawing.ModelSpace.AddDimAligned(point1, point2, location)

	' Enable alternate unit display
	dimObj.AltUnits = True

	ThisDrawing.Application.ZoomAll

	' Allow the user to change the text suffix for the alternate dimension
	suffix = InputBox("Enter a new text suffix for the alternate dimension", "Alternate Dimension Suffix", ":SUFFIX")
	dimObj.AltTextSuffix = suffix   ' Commit changes to suffix

	ThisDrawing.Regen acAllViewports

	' Read back and display the alternate dimension text suffix
	suffix = dimObj.AltTextSuffix
	If suffix <> "" Then
		MsgBox "The suffix of the alternate dimension has been changed to: " & suffix
	Else
		MsgBox "The suffix of the alternate dimension has been removed"
	End If
End Sub