🚀 go-pugleaf

Just a guess...

are you sure your reference count of the object does not come to 0 (for any
reasons) and
when you try to Execute the object is already freed...???




D. Daeschler <illusioned@netzero.net> wrote in message
news:3be9ad7a$1_2@dnews...
>
> Greetings.  What I need to do is pass the underlying ADO _Connection *
from a TADOConnection to a Microsoft DLL so that I can use the connection
from the borland app in an MS DLL.
>
> Here are some things that I have tried:
>
> In the borland app.
> --------------------------
> assume that dllcall is some function in the dll that takes one param (an
ADO _Connection *)
>
> TADOConnection *someConnection = new TADOConnection(NULL);
>
> (dllcall)((_Connection *)someConnection->ConnectionObject);
> --------------------------
>
>
> in the MS dll
> --------------------------
> __declspec(dllexport)
> void dllcall(_Connection * conn)
> {
>     _ConnectionPtr c = conn;
>     c->Execute(... /*assume valid params*/)
> }
> ---------------------------
>
> everything works fine until the call to ->Execute.  I then get an access
violation at address 5.  Any ideas on what I'm doing wrong or other ways to
do this?  thanks!
>
> - Dave