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# TestWaitForMostStableLock

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

## Function Syntax

```
long TestWaitForMostStableLock(dword aTimeout);
```

## Description

The function waits until the expiration of the time **aTimeout** for the occurrence of a LightLock event indicating "stable lock" state.

A LightLock event with a "stable lock" state is generated when a "light & Lock" state lasts uninterrupted at the hardware for a period of time equal or longer than tLock (see MOST specification).

**Note**: Consider to set always the appropriate bus context in a multibus environment before the function is called. Further information on site [MultiBus Environment](../../../Shared/CAPL/General/TestMultiBusEnvironment.md).

## Parameters

* **aTimeout**: Maximum wait time \[ms] (Specification of 0: no timeout controlling)

## Return Values

* **-2**: Resume due to constraint violation
* **-1**: General error, f.e., functionality is not available
* **0**: Resume due to timeout
* **1**: Resume based on occurred event

## Example

—

[TestWaitForMostCriticalUnlock](CAPLfunctionTestWaitForMostCriticalUnlock.md) • [TestWaitForMostLightOff](CAPLfunctionTestWaitForMostLightOff.md) • [TestWaitForMostShortUnlock](CAPLfunctionTestWaitForMostShortUnlock.md)
