devicePixelRatio property

Gets the device resolution (the ratio between physical device pixels and DPI-adjusted logical CSS pixels).

Syntax

JavaScript

p = object.devicePixelRatio

Property values

Type: Floating-point

The device pixel ratio

Remarks

The devicePixelRatio is similar to the device resolution calculated for Media Queries, except the output is in dots-per-pixel instead of dots-per-inch. In other words,

window.devicePixelRatio = window.screen.deviceXDPI / window.screen.logicalXDPI

See also

window

 

 

Show:
© 2014 Microsoft