Libpointing NPM

libpointing

Libpointing Node.js bindings

Description

Libpointing is an open-source cross-platform library that provides direct access to HID pointing devices and supports the design of pointing transfer functions.

Installation

Install libpointing
npm install libpointing

Works on Windows, macOS and Linux.

Example

var pointing = require('libpointing');

if (process.argv.length < 5)
	console.log("Usage: node", process.argv[1], "[inputdeviceURI [outputdeviceURI [transferfunctionURI]]]")

var input = new pointing.PointingDevice((process.argv[2]) ? process.argv[2] : "any:")
var output = new pointing.DisplayDevice((process.argv[3]) ? process.argv[3] : "any:");
var tFunc = new pointing.TransferFunction((process.argv[4]) ? process.argv[4] : "system:", input, output);

input.setPointingCallback(function(timestamp, dx, dy, buttons) {
	var pixels = tFunc.applyi(dx, dy, timestamp);
	console.log(timestamp, dx, dy, buttons, " -> ", pixels.dx, pixels.dy);
});

var manager = new pointing.PointingDeviceManager().addDeviceUpdateCallback(
	function(deviceDescriptor, wasAdded) {
		console.log(deviceDescriptor, wasAdded);
	}
);