J Mazzetta,
The information for the current camera type in contained in a text file in the IMAQ/data folder. You can parse this file and change the text string identifying the camera file. Here is a link to a KB on our website with an example to do this:
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/ccc5bb5990aa416786256c23006e687c?OpenDocument
Best Regards,
Chris D
NI Applications Engineer