---
title: MechanismDeactivate
framework: security
role: symbol
role_heading: Instance Property
path: security/authorizationplugininterface/mechanismdeactivate
---

# MechanismDeactivate

Deactivates an authorization mechanism.

## Declaration

```occ
int (*)(void *) MechanismDeactivate;
```

## Parameters

- `inMechanism`: An authorization mechanism reference that you returned when your doc://com.apple.security/documentation/Security/AuthorizationPluginInterface/MechanismCreate function was called to create the mechanism.

## Return Value

Return Value A result code. Return errAuthorizationSuccess (no error) if the function completes successfully and errAuthorizationInternal (Security Server internal error) if any error occurs.

## Discussion

Discussion The authorization engine calls the MechanismDeactivate function of each active mechanism when you call the RequestInterrupt function. To deactivate your mechanism, you must stop any processing that is currently underway; for example, you should terminate any threads or UI processes that you initiated. After you have terminated all processing, you must call the DidDeactivate function; the authorization engine waits for you to call this function before it resumes operation.