title: how to create textbox in WinApi
body: <p>I create like this</p>
  
  <pre><code>htextbox=CreateWindow(L"static",L"",WS_BORDER|ES_MULTILINE|WS_CHILD|WS_VISIBLE,50,0,
              100,50,hWnd,(HMENU)ID_STATIC,hInst,NULL);
  </code></pre>
  
  <p>But I can't write text there.
  <strong>What is wrong?</strong></p>