Bruc,
There are some good tutorials and application notes you may want to read, they will teach you how to combine C++ with LabVIEW.
In order to get there follow this direct link or the path explained below:
Using External Code in LabVIEWPath: zone.ni.com >> Resource Library (in your left) >> LabVIEW >> Development System >> Communicating with External Applications >> Using External Code
Regards,
Nestor Sanchez
Applications Engineer
National Instruments
Nestor