---
title: invocation
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nsinvocationoperation/invocation
---

# invocation

The receiver’s invocation object.

## Declaration

```occ
@property (retain, readonly) NSInvocation * invocation;
```

## Discussion

Discussion The invocation object identifying the target object, selector, and parameters to use to execute the operation’s task.

## See Also

### Related Documentation

- [initWithTarget:selector:object:](foundation/nsinvocationoperation/initwithtarget:selector:object:.md)
- [initWithInvocation:](foundation/nsinvocationoperation/initwithinvocation:.md)

### Getting Attributes

- [result](foundation/nsinvocationoperation/result.md)