title: TWebBrowser with Align set to alClient will not resize when client area changes
body: <p>I have a form with several splitters and panels.  In the middle is a panel that ends up with a TWebBrowser set to align alClient.</p>
  
  <p>In the past this has worked well.  However, on Windows 7 with Internet Explorer 8 the the browser is not correctly resized.  Everything else (i.e. the panels) are the correct size, just not the web browser.  Sometimes when you click into the browser, or more often when you scroll the browser will jump to the correct size. That does not happen 100% of the time though.</p>
  
  <p>I'm trying to deal with the resize directly and force the control to change size.  I can't seem to find a method that makes any difference (i.e. .Invalidate; .Repaint; .Update;)  </p>
  
  <p>TWebBrowser is an OLE control (ActiveX) that wraps the Internet Explorer control. Any ideas on how I can make the resize happen?</p>
  
  <p><strong>Updated Background:</strong></p>
  
  <p>I narrowed this down to only happening when I have a child form that I change the parent to site it inside another form.  My TWebBrowser control is on a child form that I use anytime I need to show an HTML document.  </p>
  
  <p>In my parent form I have a Grid, a splitter, and a panel with the grid set to Align top and the panel set to align client.  My child form (called THtmlViewer) has its parent set to the panel.  The THtmlViewer form is set to alClient and TWebBrowser control on the child form is also set to align client.</p>
  
  <p>If I do anything in the form resize of the THtmlViewer form I run into this issue.  Anything being directly in FormResize or indirectly using the align properties.  However, if I call my resize from the parent form everything works fine.</p>
  
  <p>The key seems to be turning off the resize code in the THtmlViewer form.  If I leave a OnResize handler or the alignment set then it does not matter what I do in the parent, the resize is not done correctly.</p>
  
  <p>I am still confused why this is needed and why I can't force it to update in the correct resize (THtmlViewer).</p>
  
  <p>As a side note I also noticed that Delphi 2007 on Windows 7 has the exactly same problem with the "Welcome Page" in the IDE. </p>
  
  <p>I have worked around the issue by adding a method to set OnResize of the child form to nil and then call my internal ForceResize from the parent's OnResize handler.  I would still like to deal with this all from the THtmlViewer form and would accept an answer that let's me avoid this hack.</p>