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# CGDisplayIsStereo(_:)

Returns a Boolean value indicating whether a display is running in a stereo graphics mode.

```
func CGDisplayIsStereo(_ display: CGDirectDisplayID) -> boolean_t
```

## Parameters

`display`

The identifier of the display to be accessed.

## Return Value

If `true`, the specified display is running in a stereo graphics mode; otherwise, `false`.

## Discussion

---

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