MouseEvent.region
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.
Value
A DOMString
representing the id of the hit region.
Examples
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
BCD tables only load in the browser