title: Set focus back to the application window after showing userform
body: <p>When showing a userform (running its <code>Show</code> method) it not only shows up on the screen but also takes the focus (the destination of e.g. keystrokes).</p>
  
  <p>Say, the userform is a custom made toolbar. Its <code>Show</code> fires in <code>Workbook_Open()</code> but the form itself is used relatively rarely so we want the focus to go back to the main application window right after its appearance.</p>
  
  <p><em>Unfortunately, it seems <code>SetFocus</code> method is not valid for application objects.</em></p>
  
  <p>So how is this done?</p>
  
  <p>I suppose the solution for my example comes after</p>
  
  <pre><code>Private Sub Workbook_Open()
      [...]
      UserForm1.Show
  </code></pre>