title: VB.NET Send Tab key to another application window
body: <p>I want to send "{TAB}" Key to another application <strong>window</strong>(send the key to the window not to textbox).</p>
  
  <p>I tried:</p>
  
  <pre><code>SendMessage(hWnd, WM_SETHOTKEY, VK_TAB, 0)
  </code></pre>
  
  <p>Nothing happened.
  <br>
  my goal is:
  <br>
  send tab key to my application <strong>Or</strong> other application when the application window is <strong>not</strong> in focus.
  <br>
  (<strong>i know that sendkey is not professional in this case there is no choice</strong>(This is the first time that I'm using it).)</p>
  
  <p>I made many attempts and I always returned to the same result:</p>
  
  <p><strong>Nothing happened.</strong></p>
  
  <p>Does anyone know the answer?</p>