title: How can I set value on slider
body: <p>I tried set value on slider. I can connect to it. But then I try set value catch <code>_ctypes.COMError: (-2146233079, None, (None, None, None, 0, None))</code>
  <a href="https://stackoverflow.com/questions/3246525/why-cant-i-create-a-com-object-in-a-new-thread-in-python">I tried this, but it not helps.</a></p>