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# CFMessagePortGetContext(_:_:)

Returns the context information for a CFMessagePort object.

```
func CFMessagePortGetContext(_ ms: CFMessagePort!, _ context: UnsafeMutablePointer<CFMessagePortContext>!)
```

## Parameters

`ms`

The message port to examine.

`context`

A pointer to the structure into which the context information for `ms` is to be copied. The information being returned is usually the same information you passed to [`CFMessagePortCreateLocal(_:_:_:_:_:)`](/documentation/CoreFoundation/CFMessagePortCreateLocal(_:_:_:_:_:)) when creating `ms`. However, if [`CFMessagePortCreateLocal(_:_:_:_:_:)`](/documentation/CoreFoundation/CFMessagePortCreateLocal(_:_:_:_:_:)) returned a cached object instead of creating a new object, `context` is filled with information from the original message port instead of the information you passed to the function.

## Discussion

The context version number for message ports is currently `0`. Before calling this function, you need to initialize the `version` member of `context` to `0`.

---

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