SOURCE

const div = document.getElementsByTagName("div")[0]
function show(event) {
    if(!isNaN(event.pressure)){
        div.innerHTML=event.pressure
    }
    event.preventDefault();
	event.returnValue = false;
    return false;
}
function add(name, cb){
    div.addEventListener(name, cb, false);
}
const pntev = [
    "pointerover", "pointerenter", 
    "pointerdown", "pointermove", 
    "pointerup", "pointercancel", 
    "pointerout", "pointerleave", 
    "contextmenu", "select", 
    "dragstart", "scroll"
]
for (let s of pntev) {
    add(s, show)
}

<div>0</div>

body, html, div{
    height: 100%;
    width: 100%;
    padding: 0;
    margin: 0;
    background-color:#ababab;
    user-select: none;
    text-align: center;
    vertical-align: middle;
}