Re: E_NOINTERFACE error

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Atif,

any of the mentioned methods is its own beast and
it can take quite a bit of effort and especially research
to find the right and optimum way to implement. Don't
expect to get results too fast here. For some of those
methods no appropriate or at least no TAPI related
sample code exists - unfortunately. So it can take
significant time here to find out how certain things are
expexted to work. Maybe this excerpt from one of
my recent postings may apply to your situation, too:

> ... the reason for many
> people getting frustrated with TAPI. As mentioned earlier it is
> important to settle expectations in a way that you need weeks or
> months to develop a robust and professional telephony application
> with TAPI.
> If you can't or are not willing to spend this amount of time I suggest
> using either some TAPI abstraction libraries that offer a much simpler
> API like Exceletel Teletools or you could also try a product like
> our TERAVoice Server (http://www.terasens.com/products/teravoice)
> with which you will be able to achieve the desired behaviour in
> hours or even minutes.


Best regards,

Matthias Moetje
-------------------------------------
TERASENS GmbH
Ackermannstraße 3
80797 München
-------------------------------------
Fon: +49 89 143370-0
Fax: +49 89 143370-22
e-mail: moetje at terasens dot de
www: www.terasens.de
-------------------------------------

"Atif" <atif@xxxxxxxxxxx> wrote in message
news:uztzm$MeFHA.1400@xxxxxxxxxxxxxxxxxxxxxxx
> Hi,
> thanx i saw Matthias's all those methods but i think it would b more
> helpful for the newcommers to tapi if there is some guidline about how we
> can use those methods mans if some steps are provided then i think it
would
> realy great help.
> ok i m playing a wav file on recieving a call (with the help of
> ansmachine code sample in sdk) and also detecting the digits pressed
during
> file playing. and in the sample of answering machine file is played with
the
> help of Direct show.Althoug still i could not overcome the delays and
> distortion. But i want to stop the file when any digit is detected and
> want to paly a new file. hoping dont mind my stupid questions
> best Regards
> Atif
>
> "Andreas Marschall [MVP TAPI]" <Andreas.Marschall@xxxxxxxxxx> wrote in
> message news:eg2VI5EeFHA.1448@xxxxxxxxxxxxxxxxxxxxxxx
> > "Atif" <atif@xxxxxxxxxxx> schrieb im Newsbeitrag
> > news:eOgp2PAeFHA.2124@xxxxxxxxxxxxxxxxxxxxxxx
> > > Ok, I'll go with Tapi 3.0 and W2K, XP and W2K3. Now if FileTerminal is
> not
> > > available on W2K then is DirectShow the only option available to me to
> play
> > > the wave file or record any message in a file. I've tried playing file
> using
> > > DirectShow (used answering machine code sample in MSDN) and it plays
the
> > > file fine. The problem is that the file is being played in chunks of
4K
> size
> > > data, due to which the file is not played smooth rather there are
> > > distortions when one chunk finishes and next starts. Also I have to
> > > interrupt the file play as soon as the caller presses any digit on his
> > > phone. What you people suggest in this regard. Is direct show the
right
> > > choice to play file, if yes then how should i remove this noise from
the
> > > voice and also interrupt the file being played on digit press.
> >
> > Atif,
> > please see the list of audio playback methods that Matthias has
compiled.
> > He posts it regularily, e.g. here:
> > "Re: Play a wave..DirectX, media Api or ITMediaControl?" on 05/24/05
> > news:ezwOloFYFHA.3032@xxxxxxxxxxxxxxxxxxxx
> >
> > --
> > Best Regards
> > Andreas Marschall
> > Microsoft MVP for TAPI / Windows SDK
> > TAPI / TSP Developer and Tester
> > http://www.I-B-A-M.de/Andreas_Marschall's_TAPI_and_TSPI_FAQ.htm
> > * Please post all messages and replies to the newsgroup so all may
> > * benefit from the discussion. Private mail is usually not replied to.
> > * This posting is provided "AS IS" with no warranties, and confers no
> rights.
> >
> >
>
>


.

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