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# invocation

The receiver’s invocation object.

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

## Discussion

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

## See Also

[`-  initWithTarget:selector:object:`](/documentation/Foundation/NSInvocationOperation/initWithTarget:selector:object:)

Returns an `NSInvocationOperation` object initialized with the specified target and selector.

[`-  initWithInvocation:`](/documentation/Foundation/NSInvocationOperation/initWithInvocation:)

Returns an `NSInvocationOperation` object initialized with the specified invocation object.


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