Technical data

Programming Examples 12
Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide 889
public void CheckVisaStatus(int nViStatus)
{
// If VISA error, throw exception.
if (nViStatus < visa32.VI_SUCCESS)
{
StringBuilder strError = new StringBuilder(256);
visa32.viStatusDesc(this.m_nResourceManager, nViStatus,
strError);
throw new ApplicationException(strError.ToString());
}
}
public void Close()
{
if (m_nSession != 0)
visa32.viClose(m_nSession);
if (m_nResourceManager != 0)
visa32.viClose(m_nResourceManager);
}
}
}
VISA Example in Visual Basic .NET
To compile and run this example in Microsoft Visual Studio 2005:
1 Open Visual Studio.
2 Create a new Visual Basic, Windows, Console Application project.
3 Cut- and- paste the code that follows into the Visual Basic .NET 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 Choose Add and then choose Add Existing Item...
c Navigate to the header file, visa32.vb (installed with Agilent IO
Libraries Suite and found in the Program Files\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.
e Right- click the project again and choose Properties; then, select
"InfiniiVision.VisaInstrumentApp" as the Startup object.