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# PHImageRequestOptionsDeliveryMode

Options for delivering requested image data, used by the [`deliveryMode`](/documentation/Photos/PHImageRequestOptions/deliveryMode) property.

```
enum PHImageRequestOptionsDeliveryMode
```

## Topics

### Constants

[`PHImageRequestOptionsDeliveryModeOpportunistic`](/documentation/Photos/PHImageRequestOptionsDeliveryMode/opportunistic)

Photos automatically provides one or more results in order to balance image quality and responsiveness.

[`PHImageRequestOptionsDeliveryModeHighQualityFormat`](/documentation/Photos/PHImageRequestOptionsDeliveryMode/highQualityFormat)

Photos provides only the highest-quality image available, regardless of how much time it takes to load.

[`PHImageRequestOptionsDeliveryModeFastFormat`](/documentation/Photos/PHImageRequestOptionsDeliveryMode/fastFormat)

Photos provides only a fast-loading image, possibly sacrificing image quality.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`Equatable`](/documentation/Swift/Equatable)

---

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