title: Enabling\disabling CMFCToolBar buttons when embedded in pane
body: <p>I know the best way to enable/disable a button from CMFCToolBar is to use</p>
  
  <pre><code>  int b_id = m_ToolBar.CommandToIndex(ID_BUTTON);
      m_ToolBar.SetButtonStyle(b_id,TBBS_DISABLED);
  </code></pre>
  
  <p>but that does not seem to work when the toolbar is embedded inside a CDockable Pane I have a derived class for CMFCToolBar which is required to enable the buttons in a pane but nothing I have tried will disable them.</p>