Using Programming Languages other than VBA

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

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

	Set preferences = ThisDrawing.Application.preferences

	' Retrieve the current ProxyImage value
	currProxyImage = preferences.OpenSave.ProxyImage
	constant = Choose(currProxyImage + 1, "acProxyNotShow", "acProxyShow", "acProxyBoundingBox")
	MsgBox "The current value for ProxyImage is " & constant, vbInformation, "ProxyImage Example"

	' Change the value for ProxyImage
	newConstant = "acProxyBoundingBox"
	preferences.OpenSave.ProxyImage = acProxyBoundingBox
	MsgBox "The new value for ProxyImage is " & newConstant, vbInformation, "ProxyImage Example"

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