Introduction to Programming The Agilent 816x VXIplug&play Instrument Driver
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition 233
Microsoft Visual Basic 4.0 (or higher)
Please refer to your Microsoft Visual Basic manual for information on 
calling DLLs.
The BASIC include file is 
hp816x.bas. You can find this file in the directory 
~vxipnp\win95\include, where ~ is the directory in the VXIPNP variable.
By default, 
~ is equivalent to C:\. This means that the file is in 
C:\vxipnp\win95\include.
You may also need to include the file 
visa.bas. visa.bas is provided with your 
VISA DLL.
Agilent VEE 5.01 (or higher)
Your copy of Agilent VEE for Windows contains a document titled Using 
VXIplug&play drivers with Agilent VEE for Windows. This document 
contains the detailed information you need for Agilent VEE applications.
LabWindows CVI/ (R) 4.0 (or higher)
The Agilent 816x VXIplug&play Instrument Driver is supplied as a Dynamic 
Link Library (.DLL) file. 
There are several advantages to using the .DLL form of the driver, including 
those listed below:
• transportability across different computer platforms,
• a higher level of support for the compiled driver from Agilent 
Technologies,
• a faster load time for your project.
LabWindows/CVI (R) will attempt by default to load the source version of 
the instrument driver. To load the DLL, you must include the file 
hp816x.fp in 
your project. 
hp816x.fp can be found in the directory vxipnp\win95\hp816x.
Do not include 
hp816x.C in your project.
You must provide an include file for 
hp816x.H. You do this by ensuring that 
the directory 
~vxipnp\win95\include is added to the include paths (CVI 
Project Option menu).
 
~
 is the directory in the VXIPNP variable. By default, ~ is equivalent to C:\. 
This means that the file is in 
C:\vxipnp\win95\include.