anchor.diff:    public
       constructor Create; override;
       destructor  Destroy; override;
  -
  -  end;
  -
  -
  -  { TfpgWindowImpl }
  +  end;
  +
   
     TfpgWindowImpl = class(TfpgWindowBase)
     protected
  
positive.code: var
    LastClickWindow: TfpgWinHandle;
    LastWinClickTime: longword;
  
  
  //const
    // map X11 event types to custom event types
  //  MSG_SCROLL      = 65;
  //  MSG_RESIZE      = 66;
  //  MSG_POPUPCLOSE  = 67;
  //  MSG_MOVE        = 68;
  //  MSG_DOUBLECLICK = 69;
  
  
   // some externals
  
negative.code:     constructor Create;
    end;
  
  
    TfpgCanvasImpl = class(TfpgCanvasBase)
    private
  