Split File into Chunks

Demonstrates how to split a file into chunks.

Download Chilkat FileAccess ActiveX (freeware)

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATFILEACCESSLib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
fac: TCkFileAccess;
success: Integer;
fileToSplit: String;
partPrefix: String;
partExtension: String;
maxChunkSize: Integer;
destDirPath: String;

begin
fac := TCkFileAccess.Create(Self);

//  Any type of file may be split.  It doesn't matter if it's
//  a binary file or a text file.
fileToSplit := 'hamlet.xml';

partPrefix := 'hamlet';
partExtension := 'spl';
maxChunkSize := 50000;
destDirPath := '.';

//  Splits hamlet.xml into hamlet1.spl, hamlet2.spl, ...
//  Output files are written to the current working directory.
//  Each chunk will be 50000 bytes except for the last which
//  will be the remainder.
success := fac.SplitFile(fileToSplit,partPrefix,partExtension,maxChunkSize,destDirPath);

if (success = 1) then
  begin
    Memo1.Lines.Add('Success.');
  end
else
  begin
    Memo1.Lines.Add(fac.LastErrorText);
  end;
end;