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...detect, which version of ADO is installed?
Autor: Simon Carter
Homepage: http://www.orcka.com
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Tip Rating (4):  
     


{
  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;


 

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