---
title: "setOpenTransportConnectionAsyncSelector(_:target:refCon:)"
framework: IOBluetooth
role: symbol
role_heading: Instance Method
path: "iobluetooth/iobluetoothobexsession/setopentransportconnectionasyncselector(_:target:refcon:)"
---

# setOpenTransportConnectionAsyncSelector(_:target:refCon:)

Allows you to set the selector to be used when a transport connection is opened, or fails to open.

## Declaration

```swift
func setOpenTransportConnectionAsyncSelector(_ inSelector: Selector!, target inSelectorTarget: Any!, refCon inUserRefCon: UnsafeMutableRawPointer!)
```

## Parameters

- `inSelector`: Selector to call on the target.
- `inSelectorTarget`: Target to be called with the selector.
- `inUserRefCon`: User’s refCon that will get passed to them when their selector is invoked.

## Discussion

Discussion You do not need to call this on the session typically, unless you have subclassed the OBEXSession to implement a new transport and that transport supports async opening of connections. If it does not support async open, then using this is pointless.