Using Programming Languages other than VBA

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

	Dim preferences As AcadPreferences
	Dim currFullCRCValidation As Boolean

	Set preferences = ThisDrawing.Application.preferences

	' Retrieve the current FullCRCValidation value
	currFullCRCValidation = preferences.OpenSave.FullCRCValidation
	MsgBox "The current value for FullCRCValidation is " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"

	' Change the value for FullCRCValidation
	preferences.OpenSave.FullCRCValidation = Not (currFullCRCValidation)
	MsgBox "The new value for FullCRCValidation is " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"

	' Reset FullCRCValidation to its original value
	preferences.OpenSave.FullCRCValidation = currFullCRCValidation
	MsgBox "The FullCRCValidation value is reset to " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"
End Sub