anchor.diff:  /// break the line.
   const DT_SINGLELINE = 0x0020;
   
  -// ------------
  +// -----------------------------------------------------------------------------
   // Class styles
  -// ------------
  +// -----------------------------------------------------------------------------
   
   /// Redraws the entire window if a movement or size adjustment changes the
   /// height of the client area.
  
positive.code: /// with the thread that registered the hot key.
  const WM_HOTKEY = 0x0312;
  
  // ------------------
  // Queue status flags
  // ------------------
  
  /// A WM_KEYUP, WM_KEYDOWN, WM_SYSKEYUP, or WM_SYSKEYDOWN message is in the
  /// queue.
  
negative.code: /// @nodoc
  const SPI_SCREENSAVERRUNNING = SPI_SETSCREENSAVERRUNNING;
  
  /// Retrieves information about the FilterKeys accessibility feature. The
  /// pvParam parameter must point to a FILTERKEYS structure that receives the
  /// information. Set the cbSize member of this structure and the uiParam
  /// parameter to sizeof(FILTERKEYS).
  const SPI_GETFILTERKEYS = 0x0032;
  
  /// Sets the parameters of the FilterKeys accessibility feature. The pvParam
  /// parameter must point to a FILTERKEYS structure that contains the new
  /// parameters. Set the cbSize member of this structure and the uiParam
  /// parameter to sizeof(FILTERKEYS).
  const SPI_SETFILTERKEYS = 0x0033;
  
  /// Retrieves information about the ToggleKeys accessibility feature. The
  /// pvParam parameter must point to a TOGGLEKEYS structure that receives the
  /// information. Set the cbSize member of this structure and the uiParam
  /// parameter to sizeof(TOGGLEKEYS).
  const SPI_GETTOGGLEKEYS = 0x0034;
  
  /// Sets the parameters of the ToggleKeys accessibility feature. The pvParam
  /// parameter must point to a TOGGLEKEYS structure that contains the new
  /// parameters. Set the cbSize member of this structure and the uiParam
  /// parameter to sizeof(TOGGLEKEYS).
  const SPI_SETTOGGLEKEYS = 0x0035;
  
  /// Retrieves information about the MouseKeys accessibility feature. The pvParam
  /// parameter must point to a MOUSEKEYS structure that receives the information.
  /// Set the cbSize member of this structure and the uiParam parameter to
  /// sizeof(MOUSEKEYS).
  const SPI_GETMOUSEKEYS = 0x0036;
  
  /// Sets the parameters of the MouseKeys accessibility feature. The pvParam
  /// parameter must point to a MOUSEKEYS structure that contains the new
  /// parameters. Set the cbSize member of this structure and the uiParam
  /// parameter to sizeof(MOUSEKEYS).
  const SPI_SETMOUSEKEYS = 0x0037;
  
  /// @nodoc
  