title: C# WM_VScroll & VScroll Control
body: <p>I am trying to create a subclass of VScroll control and intercepting the <code>WM_VSCROLL</code> message to do some stuff. On msdn, and countless articles/forums, <code>WM_VSCROLL</code> is supposed to be <code>0x115</code>, even in the windows header file that's what it is. However waiting on <code>0x115</code> doesn't bring anything. I realized it's coming through as <code>0x2115</code> instead, even <a href="http://www.koders.com/csharp/fidD1564F4D775A514752D5A184C1209BF54D7FDCB4.aspx?s=control#L8" rel="nofollow">this article</a> is using it as <code>0x2115</code>. Any reason/explanation as to why it's coming as <code>0x2115</code> instead? Is it because it's a WinForms control? </p>
  
  <p>Thanks</p>