Lazarus Pascal

Compute CRC32 of a File

Calculates the CRC32 of a file's contents and returns the 32-bit CRC as a hex string. Lazarus Pascal

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.ZipCrc;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  zipCrc: TZipCrc;
  crc: Integer;
  hexStr: string;

begin
  zipCrc := TZipCrc.Create;
  //  Use a relative for absolute path to the file..
  crc := zipCrc.FileCrc('qa_data/hamlet.xml');
  hexStr := zipCrc.ToHex(crc);
  WriteLn(hexStr);


  zipCrc.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.