anchor.diff:  
     TfpgImage = class(TfpgImageImpl)
     public
  +    function    CreateDisabledImage: TfpgImage;
       function    ImageFromSource: TfpgImage;
       function    ImageFromRect(var ARect: TRect): TfpgImage; overload;
       function    ImageFromRect(var ARect: TfpgRect): TfpgImage; overload;
  
positive.code: 
  { TfpgImage }
  
  function TfpgImage.ImageFromSource: TfpgImage;
  var
    x, y: TfpgCoord;
  
negative.code:   fpg_hint,
    fpg_extgraphics,
    fpg_utils,
    fpg_cmdlineparams,
    fpg_imgutils;
  
  var
    fpgTimers: TList;
  