Volume serial number

With this simple function, you will be able to get volume serial number and label. It could be either hard disk partition or CD/DVD disk.

unit Unit1;
 
interface
 
uses
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 Dialogs, StdCtrls;
 
type
 TForm1 = class(TForm)
 Button1: TButton;
 procedure Button1Click(Sender: TObject);
 private
 { Private declarations }
 public
 { Public declarations }
 end;
 
var
 Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
function GetHardDiskSerial(const DriveLetter: char): string;
var NotUsed, VolumeFlags, VolumeSerialNumber: dWord;
 VolumeInfo: array[0..MAX_PATH] of char;
begin
 GetVolumeInformation(PChar(DriveLetter + ':'), VolumeInfo, SizeOf(VolumeInfo),

 @VolumeSerialNumber, NotUsed, VolumeFlags, nil, 0);
 Result := Format('Label = %s VolSer = %8.8X', [VolumeInfo, VolumeSerialNumber]);
end;
 
procedure TForm1.Button1Click(Sender: TObject);
begin
 ShowMessage(GetHardDiskSerial('c'));
end;
 
end.

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;

type

TForm1 = class(TForm)

Button1: TButton;

procedure Button1Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

function GetHardDiskSerial(const DriveLetter: char): string;

var NotUsed, VolumeFlags, VolumeSerialNumber: dWord;

VolumeInfo: array[0..MAX_PATH] of char;

begin

GetVolumeInformation(PChar(DriveLetter + ':'), VolumeInfo, SizeOf(VolumeInfo),

@VolumeSerialNumber, NotUsed, VolumeFlags, nil, 0);

Result := Format('Label = %s VolSer = %8.8X', [VolumeInfo, VolumeSerialNumber]);

end;

procedure TForm1.Button1Click(Sender: TObject);

begin

ShowMessage(GetHardDiskSerial('c'));

end;

end.

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Volume serial number