demo1.pas

《Delphi百例》源码?禗elphi百例》源码

unit demo1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    memo1: TMemo;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
registerTemp : TRegistry;
bData : array[ 0..0 ] of byte;
begin
registerTemp := TRegistry.Create; //建立一个Registry实例
with registerTemp do
begin
RootKey:=HKEY_LOCAL_MACHINE;//设置根键值为HKEY_LOCAL_MACHINE
//找到Software\ODBC\ODBC.INI\ODBC Data Sources
if OpenKey('Software\ODBC\ODBC.INI\ODBC Data Sources',True) then
begin //注册一个DSN名称
WriteString( 'MyAccess', 'Microsoft Access Driver (*.mdb)' );
end
else
begin//创建键值失败
memo1.lines.add('增加ODBC数据源失败');
exit;
end;
CloseKey;

//找到或创建Software\ODBC\ODBC.INI\MyAccess,写入DSN配置信息
if OpenKey('Software\ODBC\ODBC.INI\MyAccess',True) then
begin
WriteString( 'DBQ', edit2.text );//数据库目录
WriteString( 'Description', '我的数据库设置' );//数据源描述
WriteString( 'Driver', 'C:\WINNT\SYSTEM32\odbcjt32.dll' );//驱动程序DLL文件
WriteInteger( 'DriverId', 25 );//驱动程序标识
WriteString( 'FIL', 'Ms Access;' );//Filter依据
WriteInteger( 'SafeTransaction', 0 );//支持的事务操作数目
WriteString( 'UID', '' );//用户名称
bData[0] := 0;
WriteBinaryData( 'Exclusive', bData, 1 );//非独占方式
WriteBinaryData( 'ReadOnly', bData, 1 );//非只读方式
end
else//创建键值失败
begin
memo1.lines.add('增加ODBC数据源失败');
exit;
end;
CloseKey;
//找到或创建Software\ODBC\ODBC.INI\MyAccess\Engines\Jet
//写入DSN数据库引擎配置信息
if OpenKey('Software\ODBC\ODBC.INI\MyAccess\Engines\Jet',True) then
begin
WriteString( 'ImplicitCommitSync', 'Yes' );
WriteInteger( 'MaxBufferSize', 512 );//缓冲区大小
WriteInteger( 'PageTimeout', 10 );//页超时
WriteInteger( 'Threads', 3 );//支持的线程数目
WriteString( 'UserCommitSync', 'Yes' );
end
else//创建键值失败
begin
memo1.lines.add('增加ODBC数据源失败');
exit;
end;
CloseKey;
memo1.lines.add('增加新ODBC数据源成功');
Free;
end;
end;

end.