Как узнать версию ADO?

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Как узнать версию ADO?[править | править код]

{
  With different versions of MDAC available it is sometimes
  useful to know that your application won't fail because a user
  hasn't got the latest version installed.
  The following function returns the ADO version installed,
  you need to place ComObj in the uses clause to use this function.
}

function GetADOVersion: Double;
var
  ADO: OLEVariant;
begin
  try
    ADO    := CreateOLEObject('adodb.connection');
    Result := StrToFloat(ADO.Version);
    ADO    := Null;
  except
    Result := 0.0;
  end;
end;

// To use this function try something like:

procedure TForm1.Button1Click(Sender: TObject);
const
  ADOVersionNeeded = 2.5;
begin
  if GetADOVersion then
    ShowMessage('Need to install MDAC version 2.7')
  else
    ShowMessage(Format('ADO Version %n, is OK', [GetADOVersion]));
end;


Source: Взято с сайта http://www.swissdelphicenter.ch/en/tipsindex.php
ID: 02656



function TfrmMain.GetADOVersion: Double;
var
  ADO: OLEVariant;
begin
  try
    ADO := CreateOLEObject('adodb.connection');
    Result := StrToFloat(ADO.Version);
    ADO := Null;
  except
    Result := 0.0;
  end;
end;



Source: Взято с http://delphiworld.narod.ru
ID: 02657