Nos bénévoles n'ont pas encore traduit cet article en Français. Inscrivez-vous et aidez-nous à réaliser cette tâche !
Vous pouvez également lire cet article en English (US).

The MouseEvent.region read-only property returns the id of the canvas hit region affected by the event. If no hit region is affected, null is returned.

Syntax

var hitRegion = instanceOfMouseEvent.region

Return value

A DOMString representing the id of the hit region.

Example

Example of using the event.region combined with CanvasRenderingContext2D.addHitRegion() method.

<canvas id="canvas"></canvas>

<script>
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");

ctx.beginPath();
ctx.arc(70, 80, 10, 0, 2 * Math.PI, false);
ctx.fill();
ctx.addHitRegion({id: "circle"});

canvas.addEventListener("mousemove", function(event){
  if(event.region) {
    console.log("hit region: " + event.region);
  }
});
</script>

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
regionChrome Full support Yes
Disabled
Full support Yes
Disabled
Disabled This feature is behind the Experimental Web Platform Features preference (needs to be set to true). To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox Full support 30
Disabled
Full support 30
Disabled
Disabled From version 30: this feature is behind the canvas.hitregions.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 30
Disabled
Full support 30
Disabled
Disabled From version 30: this feature is behind the canvas.hitregions.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Étiquettes et contributeurs liés au document

Contributeurs à cette page : mdnwebdocs-bot, hinell, mfluehr, sideshowbarker, fscholz, Sebastianz, teoli
Dernière mise à jour par : mdnwebdocs-bot,