unit1.pas.~4~

Delphi 2005程序设计教程_实例源文件和教学课件

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Borland.Vcl.StdCtrls, System.ComponentModel,Borland.Vcl.Registry ;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Edit3: TEdit;
    Label3: TLabel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.nfm}

procedure TForm1.Button3Click(Sender: TObject);
begin
  close;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  reg:TRegistry;
begin
  reg:=TRegistry.Create;
  reg.RootKey :=HKEY_CURRENT_CONFIG;
  reg.OpenKey('\我的注册表\我的软件',true) ;
  reg.CreateKey('test');
  reg.WriteString('ProductName',edit1.text);
  reg.WriteString('Version',edit2.text);
  reg.WriteString('Path',edit3.text);
  reg.CloseKey ;
  reg.Free ;
  ShowMessage('信息已成功被写入注册表' );
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  reg:TRegistry;
begin
  reg:=TRegistry.Create;
  reg.RootKey :=HKEY_CURRENT_CONFIG;
  reg.OpenKey('\我的注册表\我的软件',true) ;
  edit1.text:=reg.ReadString('ProductName');
  edit2.text:=reg.ReadString('Version');
  edit3.text:=reg.ReadString('Path');
  if edit1.Text='' then
     ShowMessage('注册表中没有产品名称信息！' );  
  if edit2.Text='' then
     ShowMessage('注册表中没有产品版本信息！' );
  if edit3.Text='' then
     ShowMessage('注册表中没有产品路经信息！' );
  reg.CloseKey ;
  reg.Free ;
end;
end.