Baseline Widely available
The hasPointerCapture() method of the Element interface checks whether the element on which it is invoked has pointer capture for the pointer identified by the given pointer ID.
hasPointerCapture(pointerId)
A boolean value â true if the element does have pointer capture for the pointer identified by the given pointer ID, false if it doesn't.
<html lang="en">
<script>
function downHandler(ev) {
const el = document.getElementById("target");
// Element 'target' will receive/capture further events
el.setPointerCapture(ev.pointerId);
// â¦
// Check whether element still has pointer capture
let pointerCap = el.hasPointerCapture(ev.pointerId);
if (pointerCap) {
// We've still got pointer capture
} else {
// oops, we've lost pointer capture!
}
}
function init() {
const el = document.getElementById("target");
el.onpointerdown = downHandler;
}
</script>
<body onload="init();">
<div id="target">Touch this element with a pointer.</div>
</body>
</html>
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