title: AZERTY keycode with GLFW3
body: <p>I'm using GLFW3 and I have to get keyboard events with an AZERTY configuration.</p>
  
  <p>I used glfwGetKey to get the state of the keys but that function looks to send me keys with a QWERTY configuration and when I use QWERTY, that the same problem, keys looks to be in an AZERTY there.</p>
  
  <p>So I reuse the callback but there are 2 problems. The keycode is the same that with glfwGetKey ( AZERTY / QWERTY problem ) and the callback isn't called when I hold a key ( there's a little stop ).</p>