GetVolumeInformation

GetVolumeInformation函数来获取硬盘的序列号

函数声明：

  BOOL GetVolumeInformation(
  LPCTSTR lpRootPathName,           // 与获取信息卷的根路径
  LPTSTR lpVolumeNameBuffer,        // 用于装在卷名的一个字符串
  DWORD nVolumeNameSize,            // 字符串的长度
  LPDWORD lpVolumeSerialNumber,     // 用于装载磁盘卷序列号的变量
  LPDWORD lpMaximumComponentLength, // 指定一个变量，用于装载文件名每一部分的长度
  LPDWORD lpFileSystemFlags,        // 用于装载一个或多个二进制位标志的长度
  LPTSTR lpFileSystemNameBuffer,    // 指定一个缓冲区
  DWORD nFileSystemNameSize         // lpFileSystemNameBuffer,的长度
  );

 

 

 

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Button4: TButton;
    OpenDialog1: TOpenDialog;
    ComboBox1: TComboBox;
    Edit5: TEdit;
    Label2: TLabel;
    Button5: TButton;
    procedure Button4Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
function gefiletime(sFilename:string;timetype:integer):tdatetime;
var
ffd:twin32finddata;
dft:dword;
lft,time:tfiletime;
h:thandle;
begin
h:=windows.FindFirstFile(pchar(sfilename),ffd);
case timetype of
0:time:=ffd.ftCreationTime;
1:time:=ffd.ftLastWriteTime;
2:time:=ffd.ftLastAccessTime;
end;
   if(h<>invalid_handle_value) then
   begin
   windows.FindClose(h);
   filetimetolocalfiletime(time,lft);
     filetimetodosdatetime(lft,longrec(dft).hi,longrec(dft).lo);
     result:=filedatetodatetime(dft);
   end
   else
   result:=0;
end;

function getdiskvoiserialld(drivename:string):dword;
var
dwtemp1,dwtemp2:dword;
nresult:pdword;
begin
new(nresult);
getvolumeinformation(pchar(drivename+'\'),nil,0,nresult,dwtemp1,dwtemp2,nil,0);
result:=nresult^;
dispose(nresult);
end;
{$R *.dfm}

procedure TForm1.Button4Click(Sender: TObject);
begin
if opendialog1.Execute then
edit1.Text:=opendialog1.FileName;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
edit2.Text:=datetostr(gefiletime(edit1.text,0));
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
edit3.Text:=datetostr(gefiletime(edit1.text,1));
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
                edit4.Text:=datetostr(gefiletime(edit1.text,2));
end;

procedure TForm1.ComboBox1Change(Sender: TObject);
begin
edit5.Text:=inttostr(getdiskvoiserialld(combobox1.Items[combobox1.ItemIndex]));
end;

procedure TForm1.Button5Click(Sender: TObject);

var
  nu : DWORD;
  Vf : DWORD;
  Num : DWORD; //用来存储得到的硬盘序列号
  vl : array[0..MAX_PATH] of Char;  //字符串的长度

begin
  GetVolumeInformation(PChar(Trim(Edit1.Text)),nil,SizeOf(vl),@Num,nu,Vf,nil,0);
  Edit2.Text := IntToStr(Num);
end;

end.