---
title: "scannerDeviceDidBecomeAvailable(_:)"
framework: imagecapturecore
role: symbol
role_heading: Instance Method
path: "imagecapturecore/icscannerdevicedelegate/scannerdevicedidbecomeavailable(_:)"
---

# scannerDeviceDidBecomeAvailable(_:)

Tells the client when another client closes the current open session on the scanner.

## Declaration

```swift
optional func scannerDeviceDidBecomeAvailable(_ scanner: ICScannerDevice)
```

## Discussion

Discussion Scanners require exclusive access. Only one client can open a session on a scanner at a time. The scanner is available if it does not have a session opened by another client. Attempting to open a session on a scanner that already has an open session for another client will result in an error. To open a session on a scanner as soon as it is available, implement this method and call requestOpenSession() in the method body.