> ## Documentation Index
> Fetch the complete documentation index at: https://notevil.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CAPLfunctionIso11783GetEnvDbl

# Iso11783GetEnvDbl

**Valid for**: CANoe DE • CANoe4SW DE

## Function Syntax

```plaintext theme={null}
double Iso11783GetEnvDbl( char envVar[], dword index );
```

## Description

This function gets the value of an environment variable.

## Parameters

* **envVar**: Name of the environment variable
* **index**: Index of the environment variable

## Return Values

Value of the environment variable or 0.0 if it does not exist

## Example

```plaintext theme={null}
value = Iso11783GetEnvDbl( "EvFrictionForce", 1 );
```