title: Using CreateWindowEx to Make a Message-Only Window
body: <p>I'm trying to use <code>CreateWindowEx</code> to generate a message-only window:</p>
  
  <pre><code>_hWnd = CreateWindowEx( 0, NULL, NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, NULL );
  </code></pre>
  
  <p>When my application executes this line it always returns <code>_hWnd = 0</code>. What am I doing wrong?</p>