> ## 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.

# CAPLfunctionTestGetWaitEventSysVarData

# TestGetWaitEventSysVarData

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE • CANoe:lite DE • CANoe4SW DE • CANoe4SW:lite DE

## Function Syntax

* `long testGetWaitEventSysVarData(dword index, float & value); // form 1`
* `long testGetWaitEventSysVarData(dword index, char value[], dword length); // form 2`
* `long testGetWaitEventSysVarData(dword index, float value[], dword length); // form 3`
* `long testGetWaitEventSysVarData(dword index, int64 & value); // form 4`

## Description

Retrieves the system variable value that has led to the resume of a joined wait statement.

## Parameters

* **value**: The variable will be filled with the current value of the system variable value.
* **length**: Length of the char or float array. Used for system variables of type string, integer array or float array.
* **index**: Number of the "joined event" corresponds with the return value of "testJoin...".

## Return Values

* **0**: Data access successful
* **-1**: Data access could not be executed, the last event was not a system variable event
* **-2**: Data access not possible, wrong function was used

## Example

```c theme={null}
// add sysVar event to the current set of "joined events" and get the sysVar value
dword index = 0;
float sysValue = 0;
TestJoinSysVarEvent(MySysVar);
// ... other join events
index = TestWaitForAnyJoinedEvent(2000);

TestGetWaitEventSysVarData(index, sysValue);
```

[TestWaitForSysVar](CAPLfunctionTestWaitForSysVar.md) • [TestJoinSysVarEvent](CAPLfunctionTestJoinSysVarEvent.md)