Using Programming Languages other than VBA

Sub Example_ADCInsertUnitsDefaultSource()
	' This example reads and modifies the ADCInsertUnitsDefaultSource
	' preference value.
	' When finished, this example resets the preference value back to
	' its original value.

	Dim ACADPref As AcadPreferencesUser
	Dim originalValue As Integer, newValue As Integer

	' Get the user preferences object

	Set ACADPref = ThisDrawing.Application.preferences.User

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

	' Modify the ADCInsertUnitsDefaultSource preference by toggling the value
	ACADPref.ADCInsertUnitsDefaultSource = acInsertUnitsMillimeters

	MsgBox "The ADCInsertUnitsDefaultSource preference has been set to: " & ACADPref.ADCInsertUnitsDefaultSource

	' Reset the preference back to its original value
	ACADPref.ADCInsertUnitsDefaultSource = originalValue
	MsgBox "The ADCInsertUnitsDefaultSource preference was reset back to: " & originalValue
End Sub