CNVVariableEngineIsRunning

int CNVVariableEngineIsRunning (int *isRunning);

Purpose

Indicates whether the Variable Engine is running.

The Variable Engine hosts network variables on the local computer. If the Variable Engine is not running, programs cannot connect to or read/write values from the network variables hosted on the local computer.

(Real-Time Module) This function is not supported.

Parameters

Output
Name Type Description
isRunning int Returns the state of the variable engine. A non-zero value indicates that the variable engine is running; zero indicates that the variable engine is not running.

Return Value

Name Type Description
status int Return value indicating whether the function was successful. One indicates that a next item was found, zero indicates that a next item was not found, and a negative number indicates that an error occurred.

You can call CNVGetErrorDescription to obtain a string that describes the error.

Additional Information

Library: Network Variable Library

Include file: cvinetv.h

LabWindows/CVI compatibility: LabWindows/CVI 8.5 and later

Example

Refer to networkvariable\Configurator\configurator.cws for an example of using the CNVVariableEngineIsRunning function.

Open example

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