Agilent Technologies InfiniiVision 3000 X-Series, Руководство программиста

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1150 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide
39
Programming Examples
Call viStatusDesc(session, err, strVisaErr)
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 Agilent'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 Agilent IO
Libraries Suite and found in the Program Files\IVI Foundation\VISA\
WinNT\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 Agilent IO Libraries Suite 15.
/*
* Agilent VISA Example in C#
* -------------------------------------------------------------------
* This program illustrates a few commonly used programming
* features of your Agilent oscilloscope.
* -------------------------------------------------------------------
*/
using System;
using System.IO;