title: How to send a notification that's handled by ON_NOTIFY?
body: <p>I'm trying to post a LVN_ ITEMCHANGED to my custom gridlist's owner.  I know how to send a WM_ User message using PostMessage (as shown here)</p>
  
  <pre><code>::PostMessage( AfxGetMainWnd()-&gt;GetSafeHwnd(), WM_REFRESH, (WPARAM)pBuffer, (LPARAM)GetOutputIdx() );
  </code></pre>
  
  <p>When I use this same code to send a LVN_ITEMCHANGED message though,</p>
  
  <pre><code>::PostMessage( AfxGetMainWnd()-&gt;GetSafeHwnd(), LVN_ITEMCHANGED, 0, 0);
  </code></pre>
  
  <p>it doesn't seem to be caught by the   </p>
  
  <pre><code>ON_NOTIFY(LVN_ITEMCHANGED, ..., ...) 
  </code></pre>
  
  <p>I have in the owner class.</p>
  
  <p>Am I wrong to be using ::PostMessage to send a Notify event?<br>
  Is there a difference between Notify messages and WM_ prefix messages or how they're handled?<br>
  Can someone post a sample of how I would send the message properly?</p>
  
  <p>Thanks in advance.</p>
  
  <p><em>Edit</em><br>
  I found another solution to the problem.  See my answer below.</p>