title: Alt+charkey combination in TextInput flex 4.6
body: <p>I am working on one enterprise app.
  In that, I need to open one popup on one shortcut key, which is the combination of <strong>Alt+AnyCharKey</strong>.</p>
  
  <p>So when I press that key with Alt, for different char keys, different numbers or characters is typed in TextInput.</p>
  
  <p>Suppose If I press <strong>Alt+A</strong>, it prints 1 in TextInput.
  So problem is, when I capture the shortcut key and opens a popup and by setting focus on TextInput of that popup, that number is typed in TextInput.</p>
  
  <p>So how can I disable that <strong>Alt+Key</strong> combination in TextInput ???</p>