[android-components](../../index.md) / [mozilla.components.browser.engine.gecko](../index.md) / [GeckoEngineView](index.md) / [captureThumbnail](./capture-thumbnail.md)

# captureThumbnail

`fun captureThumbnail(onFinish: (<ERROR CLASS>?) -> `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)`): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/engine-gecko-beta/src/main/java/mozilla/components/browser/engine/gecko/GeckoEngineView.kt#L165)