I note on our cut of NX4 that there is a reference to "NX Open for .NET Reference" but the link to nxopen_net_ref/index.html points to a folder that doesn't exist. It's as if the entire help collection wasn't packaged up.
Try recording journals for few interactive options.
It gives you a vb file, it throws some light on NXOpen programming provided if you have prior vb.net knowledge
The "NX Open for .NET Reference" is loaded together with the NX Documentation. It's a separate CD or DVD.
Anyway, as HariharanB suggested, journaling the actions you want to perform is the best way (the only?) to get sample codes, provided that the interactive functions you want to use are available for journaling. There is a switch in the *env.dat file (UGII_JOURNAL_INDICATOR) that activate the display a dot next to the interactive functions that are available for journaling.
For the other functions, .NET wrappers exist to use the UFUNC stuff. Samples can be found on the support UG web site.
The object browser in Visual Studio shows the NXOpen classes and there mumbers, including the wrappers.
