I'm trying to visualize a matrix using the cwgraph ActiveX control for VC++ 6.0 but I'm unable to find a helpfile for it, and I can´t know which parameters needs.
I assume you installed Measurement Studio support for Visual Studio 6.0? If so, you should be able to select the help by Start >> All Programs >> National Instruments >> Measurement Studio >> Help >> Measurement Studio Reference. This chm help file contains the documentation for Visual Basic 6 and Visual C++ 6.0. Since you are using the ActiveX graph, you want to look for CNiGraph in the Index tab.