---
title: "ABBeginLoadingImageDataForClient(_:_:_:)"
framework: Address Book
role: symbol
role_heading: Function
path: "addressbook/abbeginloadingimagedataforclient(_:_:_:)"
---

# ABBeginLoadingImageDataForClient(_:_:_:)

Starts an asynchronous fetch for image data in all locations, and returns a non-zero tag for tracking.

## Declaration

```swift
func ABBeginLoadingImageDataForClient(_ person: ABPersonRef!, _ callback: ABImageClientCallback!, _ refcon: UnsafeMutableRawPointer!) -> CFIndex
```

## Parameters

- `person`: The person whose image data you wish to fetch.
- `callback`: The function to call when the fetch is completed.
- `refcon`: An untyped pointer to program-defined data that will be passed to the callback.

## Return Value

Return Value A non-zero tag for tracking

## Discussion

Discussion Use this function to begin an asynchronous fetch. Implement your callback function to receive the fetched image. Use the ABCancelLoadingImageDataForTag(_:) function to cancel an asynchronous fetch.

## See Also

### Images

- [ABCancelLoadingImageDataForTag(_:)](addressbook/abcancelloadingimagedatafortag(_:).md)