ocus, 
it appears that the main form of your application looses focus. Whilst 
maybe this isn't the worst user-interface crime in the world, it is 
annoying and makes your application look unprofessional compared to the 
smoother behaviour in Word, Excel, DevStudio etc.
</p><p>
This subclassing sample demonstrates how to fix the title bar problem with 
a working but, erm, rather slimy hack.
</p><p class="cell">&#160;&#160;<a href="Keep_Form_Titlebars_in_Focus_when_ToolWindows_are_Shown/article.html">more...