Baseline Widely available
The tangentialPressure read-only property of the PointerEvent interface represents the normalized tangential pressure of the pointer input (also known as barrel pressure or cylinder stress).
A float representing the normalized tangential pressure of the pointer input in the range -1 to 1, inclusive, where 0 is the neutral position of the control.
Note that some hardware may only support positive values in the range 0 to 1. For hardware that does not support tangential pressure, the value will be 0.
In this snippet, when a pointerdown event is fired, different functions are called depending on the value of the event's tangentialPressure property.
someElement.addEventListener(
"pointerdown",
(event) => {
if (event.tangentialPressure === 0) {
// No pressure
process_no_tanPressure(event);
} else if (event.tangentialPressure === 1) {
// Maximum pressure
process_max_tanPressure(event);
} else {
// Default
process_tanPressure(event);
}
},
false,
);
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