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# CVDisplayLinkGetOutputVideoLatency(_:)

Retrieves the nominal latency of a display link.

```
func CVDisplayLinkGetOutputVideoLatency(_ displayLink: CVDisplayLink) -> CVTime
```

## Parameters

`displayLink`

The display link whose latency value you want to obtain.

## Return Value

A `CVTime` structure that holds the latency value. This value may be indefinite.

## Discussion

This call allows you to retrieve the device’s built-in output latency. For example, an NTSC device with one frame of latency might report back 1001/30000 or 2002/60000.

---

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