OpenLayers v4.0.1 API - Class: Event

# Class: Event

This documentation is for OpenLayers v4.0.1. The latest is v.

## ol.render.Event

### Extends

- ol.events.Event

### Members

#### context{CanvasRenderingContext2D} {null} {undefined}

  Canvas context. Only available when a Canvas renderer is used, null otherwise.

#### frameState{olx.FrameState} {undefined}

  An object representing the current render frame state.

#### glContext{ol.webgl.Context} {null} {undefined}

  WebGL context. Only available when a WebGL renderer is used, null otherwise.

#### target{Object}

  The event target.

#### type{string}

  The event type.

#### vectorContext{ol.render.VectorContext} {undefined}

  For canvas, this is an instance of `ol.render.canvas.Immediate`.

### Methods

#### preventDefault() inherited

src/ol/events/event.js, line 48

  Stop event propagation.

#### stopPropagation() inherited

src/ol/events/event.js, line 56

  Stop event propagation.

### Events

#### change inherited

src/ol/events/eventtype.js, line 8

  Generic change event. Triggered when the revision counter is increased.

#### postcompose

src/ol/render/eventtype.js, line 7

#### precompose

src/ol/render/eventtype.js, line 12

#### render

src/ol/render/eventtype.js, line 17