title: Check if ALT key is pressed
body: <p>After testing a lot I can't record if Alt key is pressed using <strong>GetAsyncKeyState</strong> in a C program.
  When I try this:</p>
  
  
  
  <pre><code>if (GetAsyncKeyState(VK_SHIFT))
      // do something
  </code></pre>
  
  <p>It works properly, but when I try this</p>
  
  <pre><code>if (GetAsyncKeyState(VK_MENU))
      // do something
  </code></pre>
  
  <p>It doesn't work. <br>
  So my question is "How I can record ALT?".</p>
  
  <p>Thanks in advance</p>