National Instruments BridgeVIEW BridgeVIEW System Control

Chapter 7 Advanced Application Topics

There are several ways to control the visibility of an operator interface

panel from your application. These options are listed below:

• Enable the Show Front Panel when Called and Close Afterwards if

Originally Closed options in the VI Setup Execution options. This

option applies only to subVIs.

• Enable the Show Front Panel when Called and Close Afterwards if

Originally Closed options in the SubVI Node Setup options. This

option applies when you call the VI as a subVI.

• Use the property node function found under Functions»Application

Control. Right-click on the property node and select Select VI Server

Class»Virtual Instrument, and then left-click the property node and

select Front Panel Window»Open.

For more information about VI Server functions, see Chapter 15,

Application Control.

BridgeVIEW System Control

As you develop more sophisticated user interfaces, you might find that you

need to exercise control over portions of the BridgeVIEW environment

from your own applications. The System VIs palette provides mechanisms

to programmatically control the BridgeVIEW Engine.

The System VIs provide you with several functions that control actions

such as launching and shutting down the Engine, enabling and disabling

logging, invoking the Login dialog box, and so on. You can reach the

System VIs through the Functions»System VIs palette, shown below.

For more information about the System VIs, refer to Appendix A,

HMI Function Reference.