---
title: "openTransportConnection(_:selectorTarget:refCon:)"
framework: IOBluetooth
role: symbol
role_heading: Instance Method
path: "iobluetooth/obexsession/opentransportconnection(_:selectortarget:refcon:)"
---

# openTransportConnection(_:selectorTarget:refCon:)

Opens a transport connection to a device. A Bluetooth connection is one example of a transport.

## Declaration

```swift
func openTransportConnection(_ inSelector: Selector!, selectorTarget inTarget: Any!, refCon inUserRefCon: UnsafeMutableRawPointer!) -> OBEXError
```

## Parameters

- `inSelector`: Selector to call for success, failure or timeout.
- `inTarget`: Target on which to call the selector.
- `inUserRefCon`: Caller’s reference constant.

## Discussion

Discussion Tranport subclasses must override this! when called you should attempt to open your transport connection, and if you are successful, return kOBEXSuccess, otherwise an interesting error code.