Instrument Control (GPIB, Serial, VISA, IVI)

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CWVISA.OCX for .Net

Hi , Im currently converting an old VB6 app that uses CWVisa.ocx to C# .

Is there a new version (managed assembly if possible) to these ActiveX control that can be used by C#? Where can i download it?
When running the VB6 app , there is a message showing that the OCX is of older version , how do i update th OCX?

Thanks.
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VISA comes with a .NET native api for developing VISA applications in C#. Examples are included for C#. If you don't have VISA you can download the latest version from here.

 
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As a side note, if you have Measurement Studio Professional or later, you have access to the Instrument I/O Assistant which integrates into Visual Studio as a code designer.  Its UI can be used to first create and configure instrumentation tasks and then generate the equivalent VB.NET or C# code. You can generate either VISA or GPIB calls.

Also check out the C# and Visual Basic .NET Instrument Control tutorial.

Best Regards,

 
Jonathan N.
National Instruments
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