hHook = SetWindowsHook( WH_CALLWNDPROC, WndHook );


	LRESULT __stdcall WndHook(int code, WPARAM wParam, LPARAM lParam)
	{
		if( code < 0 )
			return CallNextHookEx( hHook, code, wParam, lParam );
		

		switch( wParam/code )
		{
			

			case WM_DRAWITEM:
			{
				MessageBox( 0, 0, 0, 0 );

				LPDRAWITEMSTRUCT ISDraw = (LPDRAWITEMSTRUCT) lParam;

				if( ISDraw->CtlID == 0x121 )
				{
					if( ISDraw->itemState & ODS_SELECTED )
						Rectangle( ISDraw->hDC, 0, 0, 20, 20 );

					if( ISDraw->itemState & ODS_FOCUS )
						Rectangle( ISDraw->hDC, 20, 20, 50, 50 );

				
				}
			}
			break;
		}

		return CallNextHookEx( hHook, code, wParam, lParam );
	}

PCWPSTRUCT cwStruct = (PCWPSTRUCT)lParam; 

    switch( cwStruct->message )
    {
 	  case WM_DRAWITEM:
          break;
    }