User`s guide

Programming with VISA 3
Agilent VISA User’s Guide 41
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viFindNext(findList, instrDesc);
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viClose (findList);
The parameters are defined as follows.
The handle returned from viFindRsrc should be closed to
free up all the system resources associated with the search.
To close the find object, pass the findList to the viClose
function.
Use the expr parameter of the viFindRsrc function to
specify the interface to search. You can search for devices
on the specified interface. Use the following table to
determine what to use for your expr parameter.
Table 9 Definitions of Parameters
Parameter Description
sesn The resource manager session.
expr The expression that identifies what to search (see Table 10).
findList A handle that identifies this search. This handle will then be
used as an input to the viFindNext function when finding the
next match.
retcnt A pointer to the number of matches found.
instrDesc A pointer to a string identifying the location of the match. Note
that you must allocate storage for this string.
NOTE
Because VISA interprets strings as regular expressions, the string
GPIB?*INSTR applies to both GPIB and GPIB-VXI devices.