Keysight Technologies InfiniiVision 3000T X Series, Programmer'S Manual

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1338 Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide
42
Programming Examples
MsgBox "*** VISA Error : " + strVisaErr, vbExclamation
' If the error is not a warning, close the session.
If err < VI_SUCCESS Then
If session <> 0 Then Call viClose(session)
End
End If
End Sub
VISA Example in C#
To compile and run this example in Microsoft Visual Studio 2008:
1
Open Visual Studio.
2
Create a new Visual C#, Windows, Console Application project.
3
Cut-and-paste the code that follows into the C# source file.
4
Edit the program to use the VISA address of your oscilloscope.
5
Add Keysight's VISA header file to your project:
a
Right-click the project you wish to modify (not the solution) in the Solution
Explorer window of the Microsoft Visual Studio environment.
b
Click Add and then click Add Existing Item...
c
Navigate to the header file, visa32.cs (installed with Keysight IO Libraries
Suite and found in the Program Files\IVI Foundation\VISA\Win64\agvisa\
include directory), select it, but do not click the Open button .
d
Click the down arrow to the right of the Add button, and choose Add as Link .
You should now see the file underneath your project in the Solution Explorer.
It will have a little arrow icon in its lower left corner, indicating that it is a
link.
6
Build and run the program.
For more information, see the tutorial on using VISA in Microsoft .NET in the VISA
Help that comes with Keysight IO Libraries Suite 16.
/*
* Keysight VISA Example in C#
* -------------------------------------------------------------------
* This program illustrates a few commonly used programming
* features of your Keysight oscilloscope.
* -------------------------------------------------------------------
*/
using System;
using System.IO;
using System.Text;
namespace InfiniiVision
{
class VisaInstrumentApp