Автор: http://www.swissdelphicenter.ch

{************************************************ 
  Formats a partition-/file size 
  Gibt eine Partitions-/Dateigro?e im Klartext aus 
*************************************************}

 uses
   SysUtils,...;


 function BytesToStr(const i64Size: Int64): string;
 const
   i64GB = 1024 * 1024 * 1024;
   i64MB = 1024 * 1024;
   i64KB = 1024;
 begin
   if i64Size div i64GB > 0 then
     Result := Format('%.2f GB', [i64Size / i64GB])
   else if i64Size div i64MB > 0 then
     Result := Format('%.2f MB', [i64Size / i64MB])
   else if i64Size div i64KB > 0 then
     Result := Format('%.2f KB', [i64Size / i64KB])
   else
     Result := IntToStr(i64Size) + ' Byte(s)';
 end;