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**CAPL Functions** » **ISO11783** » **Virtual Terminal Interaction Layer (VT IL)** » **VTIL\_ResetBlockedTxMessage**

# VTIL\_ResetBlockedTxMessage

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

## Function Syntax

```plaintext
long VTIL_ResetBlockedTxMessage(dword pgn, dword destinationAddress, qword filterMask, qword filterValue); // form 1
long VTIL_ResetBlockedTxMessage(dbNode node, dword pgn, dword destinationAddress, qword filterMask, qword filterValue); // form 2
```

## Description

Resets the change of a single [ISO11783VTIL\_BlockTxMessage](CAPLfunctionIso11783VTILBlockTxMessage.md) call. The message to unblock is specified by PGN, destination address and a part of the first eight data bytes.

## Parameters

* **pgn**: Use same value as in `ISO11783IL_BlockTxMessage` to stop blocking the message.
* **destinationAddress**: Use same value as in `ISO11783IL_BlockTxMessage` to stop blocking the message.
* **filterMask**: Use same value as in `ISO11783IL_BlockTxMessage` to stop blocking the message.
* **filterValue**: Use same value as in `ISO11783IL_BlockTxMessage` to stop blocking the message.
* **node**: Simulation node to apply the function.

## Return Values

* **0**: Blocking has been stopped successfully
* **-1**: There is no matching entry made by `ISO11783IL_BlockTxMessage`
* **-102**: An invalid parameter is used

## Example

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