Using Programming Languages other than VBA

Sub Example_DefaultPlotStyleForObjects()
	' This example reads and modifies the preference value that controls
	' the default plot style name for newly created objects.
	' When finished, this example resets the preference value back to
	' its original value.

	Dim ACADPref As AcadPreferencesOutput
	Dim originalValue As Variant, newValue As Variant

	' Get the output preferences object
	Set ACADPref = ThisDrawing.Application.preferences.Output

	' Read and display the original value
	originalValue = ACADPref.DefaultPlotStyleForObjects
	MsgBox "The DefaultPlotStyleForObjects preference is: " & originalValue

	' Toggle and display the DefaultPlotStyleForObjects preference
	If ACADPref.DefaultPlotStyleForObjects = "ByBlock" Then
		ACADPref.DefaultPlotStyleForObjects = "Normal"
	Else
		ACADPref.DefaultPlotStyleForObjects = "ByBlock"
	End If

	newValue = ACADPref.DefaultPlotStyleForObjects
	MsgBox "The DefaultPlotStyleForObjects preference has been set to: " & newValue

	' Reset the preference back to its original value
	'
	' * Note: Comment out this last section to leave the change to
	'		 this preference in effect
	ACADPref.DefaultPlotStyleForObjects = originalValue
	MsgBox "The DefaultPlotStyleForObjects preference was reset back to: " & originalValue
End Sub