useDevicePixelRatio

Demo

Device Pixel Ratio:

pixelRatio: 1

Zoom in and out (or move the window to a screen with a different scaling factor) to see the value changes

Usage

import { useDevicePixelRatio
 } from '@vueuse/core'

const { pixelRatio
 } = useDevicePixelRatio
()

Component Usage

This function also provides a renderless component version via the @vueuse/components package. Learn more about the usage.

vue

<template>
  <UseDevicePixelRatio v-slot="{ pixelRatio
 }">
    Pixel Ratio: {{ pixelRatio
 }}
  </UseDevicePixelRatio>
</template>

Type Declarations

export interface UseDevicePixelRatioOptions extends ConfigurableWindow {}
export interface UseDevicePixelRatioReturn {
  pixelRatio
: ShallowRef
<number>
  stop
: WatchStopHandle

}
/**
 * Reactively track `window.devicePixelRatio`.
 *
 * @see https://vueuse.org/useDevicePixelRatio
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function useDevicePixelRatio
(
  options
?: UseDevicePixelRatioOptions,
): UseDevicePixelRatioReturn