I have tested "AppVisio.AlertResponse = 1" in VBA, directly on the Visio2003
drawing scope, but I could not found any effect to the behaviour of the
dialog for Cross-functional Flowchart. I think it is because the dialog is
not a Visio's native alarming dialog, but of an addon for Cross-functional
Flowchart. It seems the dialog is controlled by the addon that is not opened
to the users, so I do not think a user can change its behaviour.