Using Programming Languages other than VBA

Sub Example_XRefDemandLoad()
	' This example returns the current setting of
	' XRefDemandLoad. It then changes the value, and finally
	' it resets the value back to the original setting.

	Dim preferences As AcadPreferences
	Dim currXRefDemandLoad As Integer
	Dim constant As String
	Dim newConstant As String

	Set preferences = ThisDrawing.Application.preferences

	' Retrieve the current XRefDemandLoad value
	currXRefDemandLoad = preferences.OpenSave.XrefDemandLoad
	constant = Choose(currXRefDemandLoad + 1, "acDemandLoadDisabled", "acDemandLoadEnabled", "acDemandLoadEnabledWithCopy")
	MsgBox "The current value for XRefDemandLoad is " & constant, vbInformation, "XRefDemandLoad Example"

	' Change the value for XRefDemandLoad
	newConstant = "acDemandLoadEnabledWithCopy"
	preferences.OpenSave.XrefDemandLoad = acDemandLoadEnabledWithCopy
	MsgBox "The new value for XRefDemandLoad is " & newConstant, vbInformation, "XRefDemandLoad Example"

	' Reset XRefDemandLoad to its original value
	preferences.OpenSave.XrefDemandLoad = currXRefDemandLoad
	MsgBox "The XRefDemandLoad value is reset to " & constant, vbInformation, "XRefDemandLoad Example"
End Sub