anchor.diff:  const WS_CHILD = 0x40000000;
   
   /// Same as the WS_CHILD style.
  -const WS_CHILDWINDOW = 0x40000000;
  +const WS_CHILDWINDOW = WS_CHILD;
   
   /// Excludes the area occupied by child windows when drawing occurs within the
   /// parent window. This style is used when creating the parent window.
  
positive.code: const WS_HSCROLL = 0x00100000;
  
  /// The window is initially minimized. Same as the WS_MINIMIZE style.
  const WS_ICONIC = 0x20000000;
  
  /// The window is initially maximized.
  const WS_MAXIMIZE = 0x01000000;
  
negative.code: 
  /// The window is an overlapped window. An overlapped window has a title bar and
  /// a border. Same as the WS_OVERLAPPED style.
  const WS_TILED = WS_OVERLAPPED;
  
  /// The window is an overlapped window. Same as the WS_OVERLAPPEDWINDOW style.
  const WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW;
  
  /// The window is initially visible.
  ///
  