---
title: CGDisplayReservationInterval
framework: coregraphics
role: symbol
role_heading: Type Alias
path: coregraphics/cgdisplayreservationinterval
---

# CGDisplayReservationInterval

The time interval for a fade reservation.

## Declaration

```swift
typealias CGDisplayReservationInterval = Float
```

## Discussion

Discussion A fade reservation interval is a period of time during which a specific display is reserved for a fade operation. Fade reservation intervals range from 1 to kCGMaxDisplayReservationInterval seconds. For more information about fade reservations, see the function CGAcquireDisplayFadeReservation(_:_:). Fade reservation tokens are discussed in CGDisplayFadeReservationToken.

## See Also

### Data Types

- [CGButtonCount](coregraphics/cgbuttoncount.md)
- [CGCharCode](coregraphics/cgcharcode.md)
- [CGDirectDisplayID](coregraphics/cgdirectdisplayid.md)
- [CGDisplayBlendFraction](coregraphics/cgdisplayblendfraction.md)
- [CGDisplayConfigRef](coregraphics/cgdisplayconfigref.md)
- [CGDisplayCount](coregraphics/cgdisplaycount.md)
- [CGDisplayErr](coregraphics/cgdisplayerr.md)
- [CGDisplayFadeInterval](coregraphics/cgdisplayfadeinterval.md)
- [CGDisplayFadeReservationToken](coregraphics/cgdisplayfadereservationtoken.md)
- [CGDisplayMode](coregraphics/cgdisplaymode.md)
- [CGDisplayReconfigurationCallBack](coregraphics/cgdisplayreconfigurationcallback.md)
- [CGDisplayStream](coregraphics/cgdisplaystream.md)
- [CGDisplayStreamFrameAvailableHandler](coregraphics/cgdisplaystreamframeavailablehandler.md)
- [CGDisplayStreamUpdate](coregraphics/cgdisplaystreamupdate.md)
- [CGEvent](coregraphics/cgevent.md)