unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, FileUnit, StdCtrls,
  systemUnit,
uses_end;

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  i: Integer;
  Drives: String;
  MessageOutput: String;

  Size, Free: Int64;
begin
  Memo1.Lines.Clear;
  Memo1.Lines.Add('Drive Type DiskSize DiskFree');

  Drives := GetDriveString;
  for i := 1 to Length(Drives) do
  begin
    MessageOutput := Drives[i] + ':\ ';
    MessageOutput := MessageOutput +
      IntToStr(DriveType(Char(Drives[i])))+' ';
    Memo1.Lines.Add(MessageOutput);

    MessageOutput := '  DiskSize ';
    MessageOutput := MessageOutput +
      IntToStr(GetDiskSize(Drives[i])) + 'Byte =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskSize(Drives[i]), bfByteToKilo, 0) + 'KB =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskSize(Drives[i]), bfByteToMega, 0) + 'MB =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskSize(Drives[i]), bfByteToGiga, 0) + 'GB';
    Memo1.Lines.Add(MessageOutput);

    MessageOutput := '  DiskFree ';
    MessageOutput := MessageOutput +
      IntToStr(GetDiskFree(Drives[i])) + 'Byte =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskFree(Drives[i]), bfByteToKilo, 0) + 'KB =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskFree(Drives[i]), bfByteToMega, 0) + 'MB =';
    MessageOutput := MessageOutput +
      ByteToStr(GetDiskFree(Drives[i]), bfByteToGiga, 0) + 'GB';
    Memo1.Lines.Add(MessageOutput);

    GetDiskFreeSpaceEx(Drives[i], Size, Free);
    MessageOutput := '  DiskSize ';
    MessageOutput := MessageOutput +
      IntToStr(Size) + 'Byte =';
    MessageOutput := MessageOutput +
      ByteToStr(Size, bfByteToKilo, 0) + 'KB =';
    MessageOutput := MessageOutput +
      ByteToStr(Size, bfByteToMega, 0) + 'MB =';
    MessageOutput := MessageOutput +
      ByteToStr(Size, bfByteToGiga, 0) + 'GB';
    Memo1.Lines.Add(MessageOutput);

    MessageOutput := '  DiskSize ';
    MessageOutput := MessageOutput +
      IntToStr(Free) + 'Byte =';
    MessageOutput := MessageOutput +
      ByteToStr(Free, bfByteToKilo, 0) + 'KB =';
    MessageOutput := MessageOutput +
      ByteToStr(Free, bfByteToMega, 0) + 'MB =';
    MessageOutput := MessageOutput +
      ByteToStr(Free, bfByteToGiga, 0) + 'GB';
    Memo1.Lines.Add(MessageOutput);

  end;
end;

end.