title: Fullscreen GLFW window disappears when focus is lost
body: <p>I am creating an OpenGL window like this:</p>
  
  <pre><code>auto mode = glfwGetVideoMode(monitor);
  mWindowWidth = mode-&gt;width;
  mWindowHeight = mode-&gt;height;
  
  glfwWindowHint(GLFW_RED_BITS, mode-&gt;redBits);
  glfwWindowHint(GLFW_GREEN_BITS, mode-&gt;greenBits);
  glfwWindowHint(GLFW_BLUE_BITS, mode-&gt;blueBits);
  glfwWindowHint(GLFW_REFRESH_RATE, mode-&gt;refreshRate);
  
  mWindow = glfwCreateWindow(mWindowWidth, mWindowHeight, "Test", monitor, NULL);
  </code></pre>
  
  <p>This works fine except for one major flaw:
  When I focus another window (even if that's on a different monitor!) the GLFW window disappears in the background.</p>
  
  <p>How can I create a (fullscreen) GLFW window that always stays on top on a given monitor?</p>