---
title: "OnTrailerUpdate | open.mp"
description: "This callback is called when a player sent a trailer update."
canonical: https://omp.itsneufox.com/th/docs/scripting/callbacks/OnTrailerUpdate
language: th
---

# OnTrailerUpdate

## คำอธิบาย

This callback is called when a player sent a trailer update.

| Name | Description |
| --- | --- |
| playerid | The ID of the player who sent a trailer update |
| vehicleid | The Trailer being updated |

## ส่งคืน

0 - Cancels any trailer updates from being sent to other players. Update is still sent to the updating player.

1 - Processes the trailer update as normal and synchronizes it between all players.

มันถูกเรียกในฟิลเตอร์สคริปต์ก่อนเสมอ

## ตัวอย่าง

```c
public OnTrailerUpdate(playerid, vehicleid)
{
    DetachTrailerFromVehicle(GetPlayerVehicleID(playerid));
    return 0;
}
```

## บันทึก

warning

This callback is called very frequently per second per trailer. You should refrain from implementing intensive calculations or intensive file writing/reading operations in this callback.

## ฟังก์ชั่นที่เกี่ยวข้องกัน

-   [GetVehicleTrailer](https://omp.itsneufox.com/th/docs/scripting/functions/GetVehicleTrailer): Check what trailer a vehicle is pulling.
-   [IsTrailerAttachedToVehicle](https://omp.itsneufox.com/th/docs/scripting/functions/IsTrailerAttachedToVehicle): Check if a trailer is attached to a vehicle.
-   [AttachTrailerToVehicle](https://omp.itsneufox.com/th/docs/scripting/functions/AttachTrailerToVehicle): Attach a trailer to a vehicle.
-   [DetachTrailerFromVehicle](https://omp.itsneufox.com/th/docs/scripting/functions/DetachTrailerFromVehicle): Detach a trailer from a vehicle.