[Dev-C++] Window Class Error

[Noorez K. <lor...@ho...>]

WNDCLASSEX l_Class;
  l_Class.cbSize = sizeof( WNDCLASSEX );
  l_Class.style = 0;
  l_Class.lpszClassName = "WindowsApp";
  l_Class.lpfnWndProc = WindowProcedure;
  l_Class.hbrBackground = NULL;
  l_Class.hCursor = NULL;
  l_Class.hIcon = NULL;
  l_Class.hIconSm = NULL;
  l_Class.lpszMenuName = NULL;
  l_Class.cbClsExtra = 0;
  l_Class.cbWndExtra = 0;

This is not working, what am I doing wrong?

_________________________________________________________________
Powerful Parental Controls Let your child discover the best the Internet has 
to offer. 
http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines 
  Start enjoying all the benefits of MSN® Premium right now and get the 
first two months FREE*.