title: Exit / disable edit mode after double click handled event
body: <p>I'd like to display a dialog after a user clicks a cell in an Excel sheet.
  Something like this:</p>
  
  <pre><code>Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
      MsgBox "a cell was clicked!", vbOKOnly, "a click"
  End Sub
  </code></pre>
  
  <p>It works perfectly fine. The problem is, after a double click edit mode is turned on and a formula is expected to be entered. How do I disable this behaviour?</p>
  
  <p>I'd like to achieve pure functionality:
  ~ user clicks a cell
  ~ a dialog appears
  ~ user closes the dialog
  ~ a cell does NOT go into edit mode, the sheet looks exactly as it did before double click event.</p>