> ## 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.

# CAPLfunctionIso11783OPSave

# Iso11783OPSave

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

## Function Syntax

```plaintext theme={null}
long Iso11783OPSave( dword ecuHandle, char filename[] );
```

## Description

The function saves an object pool file (\*.iop).

## Parameters

* **ecuHandle**\
  Handle of the ECU. The handle must be created with [Iso11783CreateECU](CAPLfunctionIso11783CreateECU.md).

* **filename**\
  Filename of an object pool file (\*.IOP)

## Return Values

0 or [error code](../CAPLfunctionsISONLErrorCodes.md)

## Example

```plaintext theme={null}
dword handle = 0;
handle = Iso11783CreateECU( gECUName );

Iso11783OPSave(handle, "ObjectPool.iop");
```