title: TAB key not working under citrix environment using PyAutoGUI
body: <p>I am trying to fill a login form in Citrix environment using PyAutoGUI. But I am unable to press <code>TAB</code> key to switch form fields. Keys like <code>Enter</code> is working properly.</p>
  
  <p>Manually <code>TAB</code> is working on that form but it is not working using PyAutoGUI. Below is the code I am trying.</p>
  
  <pre><code>time.sleep(10)
  im9 = pyautogui.screenshot()
  im9 = np.array(im9)
  
  # locate_image locates image on current screen
  username_sp = fi.locate_image(im9, 'Screenshot.png')
  if username_sp:
      pyautogui.typewrite('Username\t',interval=1)
      time.sleep(2)
      pyautogui.press('tab')
      pyautogui.typewrite(r'pass',interval=0.25)
  </code></pre>
  
  <p>But, <code>user</code> and <code>pass</code> get clubbed into single Username field. On normal environment <code>TAB</code> is working Ok.</p>