title: Using Samsung S-Pen in Canvas
body: <p>I am working on a web application where the user should be abled to sign a document on a tablet. We use the Galaxy Tab 12.2 because the S-Pen has the desired precision. 
  The canvas where i draw on uses listens to the <code>touch</code> events to draw on the canvas.</p>
  
  <pre><code>        canvas.addEventListener('touchstart', handleStart);
          canvas.addEventListener('touchmove' , handleMove);
  </code></pre>
  
  <p>The problem here is, that if the user touches the canvas with his fingers, the canvas will draw lines there.</p>
  
  <p>Is there a way to differentiate between S-Pen events and 'normal' touch events?</p>
  
  <p>I know that on the Surface Pro 3 with Internet Expoler I can handle Pen input different from finger input.</p>