National Instruments BridgeVIEW Manual de usuario descargar pdf (Pagina 308)

100

101

Chapter 15 Application Control

the TRUE value is passed into a Case structure and each case contains the

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.

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.

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.

1 2 ... 303 304 305 306 307 308 309 310 311 312 313 ... 454 455

Comentarios a estos manuales

Sin comentarios

National Instruments BridgeVIEW Manual de usuario Pagina 308

Comentarios a estos manuales

Relacionado con productos y manuales para Manuales de software National Instruments BridgeVIEW