---
title: Device-Specific Value
framework: appkit
role: collectionGroup
role_heading: API Collection
path: appkit/device-specific-value
---

# Device-Specific Value

A constant that is used by image representations to denote an attribute whose value changes to match the display device.

## Topics

### Constants

- [NSImageRepMatchesDevice](appkit/nsimagerepmatchesdevice.md)

## See Also

### Specifying Information About the Representation

- [bitsPerSample](appkit/nsimagerep/bitspersample.md)
- [colorSpaceName](appkit/nsimagerep/colorspacename.md)
- [hasAlpha](appkit/nsimagerep/hasalpha.md)
- [isOpaque](appkit/nsimagerep/isopaque.md)
- [pixelsHigh](appkit/nsimagerep/pixelshigh.md)
- [pixelsWide](appkit/nsimagerep/pixelswide.md)
- [layoutDirection](appkit/nsimagerep/layoutdirection.md)