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Unity Engine

AddressOf<T>(ref T)

Obtains the memory address of the specified object as a pointer.
Read time 1 minuteLast updated 17 days ago

Definition

AddressOf<T>(T)

public static void* AddressOf<T>(ref T output) where T : struct

Parameters

output

T
The managed object for which you need the memory address. Ensure the object remains valid and exists throughout the use of its address.

Returns

Type

Description

void*A void pointer that represents the memory address of the object. This pointer allows direct access to the memory location. Manage this pointer carefully to prevent runtime errors.

Remarks

The 
AddressOf
method retrieves the memory address of a managed object. Use this in scenarios that need direct memory access or interaction with unmanaged code, where efficiency is crucial.
Exercise caution when you use this method. Improper handling of memory addresses may cause memory corruption or application instability. Use this method to enhance performance in areas where managed memory safety has significant overhead.
using Unity.Collections.LowLevel.Unsafe;using UnityEngine;public class AddressOfExample : MonoBehaviour{    struct ExampleStruct    {        public int Number;    }    void Start()    {        ExampleStruct example = new ExampleStruct { Number = 100 };        unsafe        {            // Get the memory address of the struct            void* address = UnsafeUtility.AddressOf(ref example);            // Modify the struct's value directly through the pointer            ExampleStruct* pointer = (ExampleStruct*)address;            pointer->Number = 200;            Debug.Log($"Modified value: {example.Number}");  // Outputs: Modified value: 200        }    }}
Additional Resources: UnsafeUtility.As.