---
title: Timeout Constants
framework: coreservices
role: collectionGroup
path: coreservices/apple_events/1542814-timeout_constants
---

# Timeout Constants

Specify a timeout value.

## Overview

Overview Your application can use these constants when it calls the AEInteractWithUser(_:_:_:) function, or it can supply the specific amount of time (in ticks) that your handler is willing to wait for a response from the user. You can also use the constants with the AESend(_:_:_:_:_:_:_:) function.

## Topics

### Constants

- [kAEDefaultTimeout](coreservices/kaedefaulttimeout.md)
- [kNoTimeOut](coreservices/knotimeout.md)