Component.SendMessageUpwards Manual     Reference     Scripting  
Scripting > Runtime Classes > Component

function SendMessageUpwards (methodName : String, value : object = null, options : SendMessageOptions = SendMessageOptions.RequireReceiver) : void


Calls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour

The receiving method can choose to ignore the argument by having zero arguments. if options is set to SendMessageOptions.RequireReceiver an error is printed when the message is not picked up by any component.

// Calls the function ApplyDamage with a value of 5
SendMessageUpwards ("ApplyDamage", 5.0);

// Every script attached to the game object
// that has a ApplyDamage function will be called.
function ApplyDamage (damage : float) {
print (damage);

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void ApplyDamage(float damage) {
void Awake() {
SendMessageUpwards("ApplyDamage", 5.0F);

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def ApplyDamage(damage as single):

def Awake():
SendMessageUpwards('ApplyDamage', 5.0F)