---
title: "AEDisposeDesc(_:)"
framework: coreservices
role: symbol
role_heading: Function
path: coreservices/1444208-aedisposedesc
---

# AEDisposeDesc(_:)

Deallocates the memory used by a descriptor.

## Declaration

```swift
func AEDisposeDesc(_ theAEDesc: UnsafeMutablePointer<AEDesc>!) -> OSErr
```

## Parameters

- `theAEDesc`: A pointer to the descriptor to deallocate. On return, a null descriptor. If you pass a null descriptor in this parameter, AEDisposeDesc returns noErr. See doc://com.apple.documentation/documentation/coreservices/aedesc.

## Return Value

Return Value A result code. See Result Codes. As currently implemented, AEDisposeDesc always returns noErr.

## Discussion

Discussion The AEDisposeDesc function deallocates the memory used by a descriptor. After calling this method, the descriptor becomes an empty descriptor with a type of typeNULL. Because all Apple event structures (except for keyword-specified descriptors) are descriptors, you can use AEDisposeDesc for any of them. Do not call AEDisposeDesc on a descriptor obtained from another Apple Event Manager function (such as the reply event from a call to AESend(_:_:_:_:_:_:_:)) unless that function returns successfully. Special Considerations If the AEDesc might contain an OSL token, dispose of it with AEDisposeToken(_:). Version-Notes Thread safe starting in OS X v10.2.