National Instruments BridgeVIEW Manual De Usuario
Chapter 15
Application Control
© National Instruments Corporation
15-3
the TRUE value is passed into a Case structure and each case contains the
appropriate subVI, as shown in the previous illustration.
appropriate subVI, as shown in the previous illustration.
The disadvantage of the above approach is that all subVIs are in memory at
all times, regardless of which ones are needed. If each subVI is large, your
main menu VI might require a large amount of memory.
all times, regardless of which ones are needed. If each subVI is large, your
main menu VI might require a large amount of memory.
To avoid using so much memory, you can use the VI Server to load and
execute VIs dynamically. To do this, you must know the name of the VI you
want to access and its location on the computer or network. The illustration
below demonstrates the same scenario described above, this time using the
VI Server.
execute VIs dynamically. To do this, you must know the name of the VI you
want to access and its location on the computer or network. The illustration
below demonstrates the same scenario described above, this time using the
VI Server.
In both of the previous examples, the top-level VI stops executing until the
subVI completes, which means the top-level VI stops responding to the
user interface. To keep both the top-level VI and other VIs responding to
the user interface at all times, you can load and run VIs dynamically as
shown in Activity 15-1.
subVI completes, which means the top-level VI stops responding to the
user interface. To keep both the top-level VI and other VIs responding to
the user interface at all times, you can load and run VIs dynamically as
shown in Activity 15-1.