title: tcl entry with some default text
body: <p>I want an entry widget with some default text shown in the box. -state disable. When I click on edit button, it will be enable and I can able to change the text. I can manage the Edit button portion, just need help about the entry widget.</p>
  
  <p>I have tried with this code :</p>
  
  <pre><code>entry .e1 -text "abcd" -state disable
  pack .e1 -in .WorkArea -side left
  </code></pre>