Re: COM Server Registration

From:

"Alexander Nickolov" <agnickolov@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Fri, 21 Sep 2007 13:25:43 -0700

Message-ID:

<O219Q2I$HHA.4612@TK2MSFTNGP03.phx.gbl>

Make sure the CLSID in your code matches the CLSID in
your registration script.

--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://vcfaq.mvps.org
=====================================

"Lamefif" <Leonardo.Pjetri@googlemail.com> wrote in message
news:1190404670.848755.259250@g4g2000hsf.googlegroups.com...

hi, im reading this book on com and need some help with the examples.
i have compiled the server, and to register it i have
written a .reg file as instructed.
-----.reg file--
REGEDIT
HKEY_CLASSES_ROOT\CarInProcServer.CoCar\CLSID = {6F0BA608-CDA6-44ba-
AC80-F2B31B8A496C}
HKEY_CLASSES_ROOT\CLSID\{6F0BA608-CDA6-44ba-AC80-F2B31B8A496C} =
CarInProcServer.CoCar
\InprocServer32 = C:\Documents and Settings\Leonardo\My Documents
\Visual Studio 2005\Projects\CarInProcServer\Debug\CarInProcServer.dll
------
when run the file above works, it adds to registry the server.

hr = CoGetClassObject(CLSID_CoCar, CLSCTX_INPROC_SERVER,
                        NULL, IID_IClassFactory, (void**)&pCF);
here however CovetClassObject returns a "Class not registered" and i
get access violation at run time.

--client---
int main()
{
CoInitialize(NULL);
    HRESULT hr = NULL;
    IClassFactory* pCF = NULL;
    ICreateCar* pICreateCar = NULL;
    IStats* pStats = NULL;
    IEngine* pEngine = NULL;
// Get the class factory pointer of CoCar.
    hr = CoGetClassObject(CLSID_CoCar, CLSCTX_INPROC_SERVER,
                        NULL, IID_IClassFactory, (void**)&pCF);
      // Make a CoCar & get ICreateCar.
    hr = pCF->CreateInstance(NULL, IID_ICreateCar,
(void**)&pICreateCar);
........

thanks