Devart Forums

Delphi 2009
FB 2.1
DbxIda 2.50.20

On a form, if I run this code:

procedure TForm1.Button2Click(Sender: TObject);
var
C: TSQLConnection;
begin
C := TSQLConnection.Create(self);
try
C.DriverName := DbxIdaDriverLoader.sBuiltinDriverName;
//C.DriverName := DBXDevArtInterbase.sDriverName;

C.VendorLib := 'C:\Program Files\Firebird\Firebird_2_1\bin\FBClient.dll';
C.LoginPrompt := False;
C.Params.Clear;
C.Params.Add('User_Name=SYSDBA');
C.Params.Add('Password=masterkey');
C.Params.Add('Database=' + 'localhost:C:\MyDatabase.fdb');
C.Open;
finally
C.Free;
end;

Application.Terminate;
end;

Then I get an Invalid Pointer Operation error when the app is closing.

The error occurs in TDBXDynalinkDriver.Destroy;

If I change the code to use

C.DriverName := DBXDevArtInterbase.sDriverName;

instead of

C.DriverName := DbxIdaDriverLoader.sBuiltinDriverName;

then the error does not occur.

Is this a regression in 2.50.XX ? I did not see it in 2.40.16

We have fixed this problem. The fix will be included in the next build of DbxIda.

To fix the problem, remove the following line from the finalization section in dbxibc.pas.