> ## 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.

# CAPLfunctionIso11783ILPDDOnStateChanged

[Open topic with navigation](../../../../../../CANoeDEFamily.htm#Topics/CAPLFunctions/ISO11783/ISOInteractionLayer/Functions/CAPLfunctionIso11783ILPDDOnStateChanged.md)

[CAPL Functions](../../../CAPLfunctions.md) » [ISO11783](../../CAPLfunctionsISO11783Overview.md) » [ISO11783 Interaction Layer](../CAPLfunctionsISOILOverview.md) » Iso11783IL\_PDDOnStateChanged

# Iso11783IL\_PDDOnStateChanged (Callback)

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

## Function Syntax

```c theme={null}
void Iso11783IL_PDDOnStateChanged( 
 dword state );
```

## Description

Is called up when the interaction layer changes its state.

## Parameters

* **state**: task state:
  * 0: not initialized
  * 1: initialized
  * 2: start up delay (6 seconds)
  * 3: wait for task controller status
  * 4: query information
  * 5: transfer object pool
  * 6: object pool activation
  * 7: online
  * 8: task active

## Return Values

—

## Example

```c theme={null}
void Iso11783IL_PDDOnStateChanged( dword state )
{
  switch(state) {
    case 0: // Uninitialized
      break;
    case 1: // Initialized
      break;
    case 2: // StartUpDelay
      break;
    case 3: // Wait For Task Controller Status
      break;
    case 4: // Query Info
      break;
    case 5: // Transfer Object Pool
      break;
    case 6: // Activate Object Pool
      break;
    case 7: // Online
      break;
    case 8: // Task active
      break;
  }
}
```