---
title: "AEGetObjectAccessor(_:_:_:_:_:)"
framework: coreservices
role: symbol
role_heading: Function
path: coreservices/1449054-aegetobjectaccessor
---

# AEGetObjectAccessor(_:_:_:_:_:)

Gets an object accessor function from an object accessor dispatch table.

## Declaration

```swift
func AEGetObjectAccessor(_ desiredClass: DescType, _ containerType: DescType, _ accessor: UnsafeMutablePointer<OSLAccessorUPP?>!, _ accessorRefcon: UnsafeMutablePointer<SRefCon?>!, _ isSysHandler: Bool) -> OSErr
```

## Parameters

- `desiredClass`: The object class of the Apple event objects located by the object accessor function to get. Pass the value typeWildCard to get an object accessor function whose entry in an object accessor dispatch table specifies typeWildCard as the object class. Pass the value cProperty to get an object accessor function whose entry in an object accessor dispatch table specifies cProperty (a constant used to specify a property of any object class). Some other possible values are defined in doc://com.apple.documentation/documentation/coreservices/apple_events/1556368-object_class_id_constants. See doc://com.apple.documentation/documentation/coreservices/desctype.
- `containerType`: The descriptor type of the token that identifies the container for the objects located by the requested accessor function. (Token is defined in doc://com.apple.documentation/documentation/coreservices/1446783-aedisposetoken.) Pass the value typeWildCard to get an object accessor function whose entry in an object accessor dispatch table specifies typeWildCard as the descriptor type of the token used to specify the container type. See doc://com.apple.documentation/documentation/coreservices/desctype.
- `accessor`: A universal procedure pointer. On return, a pointer to the requested object accessor function, if an object accessor dispatch table entry exists that exactly matches the values supplied in the parameters desiredClass and containerType. See doc://com.apple.documentation/documentation/coreservices/oslaccessorupp.
- `accessorRefcon`: A pointer to a reference constant. On return, points to the reference constant from the object accessor dispatch table entry for the specified object accessor function. The reference constant may have a value of 0.
- `isSysHandler`: Specifies the object accessor dispatch table to get the object accessor function from. Pass TRUE to get the object accessor function from the system object accessor dispatch table or FALSE to get the object accessor function from your application’s object accessor dispatch table. Use of the system object accessor dispatch table is not recommended.

## Return Value

Return Value A result code. See Result Codes.

## Discussion

Discussion Calling AEGetObjectAccessor does not remove the object accessor function from an object accessor dispatch table.  Version-Notes In macOS, your application can not make an object callback function available to other applications by installing it in a system object accessor dispatch table.

## See Also

### Getting, Calling, and Removing Object Accessor Functions

- [AECallObjectAccessor(_:_:_:_:_:_:)](coreservices/1447059-aecallobjectaccessor.md)
- [AEInstallObjectAccessor(_:_:_:_:_:)](coreservices/1447905-aeinstallobjectaccessor.md)
- [AERemoveObjectAccessor(_:_:_:_:)](coreservices/1442552-aeremoveobjectaccessor.md)