Can I do Direct IO access in Visual C++ under win2k/winxp?

[gonnago1]

As we all know .the NT OS do not allow us to access the IO port directly.
labwindows supplied low-level drivers to support direct IO operation such as inp/outp.
I wonder if Measurement Studio supplied similar function.
Can Visa help to slove this problem?
Thanks a lot.

[bilalD]

Measurement Studio does not have any libraries for this. If you have CVI and Measurment Studio, you can use the Measurement Studio Project wizards to import a CVI project into visual C for you. This way, you can use the low level libraries of CVI with Visual C++. This would require that you distribute the CVI runtime engine and low level driver support with your MSVC application. You can freely distribute this without needing additional licenses.

You can use VISA for this purpose as well. There are some license restrictions with VISA. If you don't have any NI hardware or a NI development system like LabVIEW, MS, CVI or TestStand (not just the runtime but the full version), you are allowed to freely distribute your application on a 100 systems only.