What should I do if I can't find the answer to my question here?
You can find more detailed information in the manuals that ship with your kit. Many of these manuals are available as Acrobat (.pdf) files or compiled HTML help (.chm) files, and are contained in the software's manuals directory. NI-VISA includes online help to help you get started with basic concepts about programming with NI-VISA, including programmer's reference with descriptions of each function.
If the documentation does not answer your question, consult the technical support resources on the National Instruments Web site.