catching the Tones and Digits in Call (TAPI 3.0)

Exceltel uses its own Component to do these things,, i need Original Tapi Code,, Not using any Third Party thing, I saw a post in this forum which teaches how to collect Digits, But that is in C#, and i dont know how to convert it into Vb.net,,, By the way, here is that code

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There is an interface named "ITLegacyCallMediaControl" in tapi, u need to access this interface. Here is the sample code.

ITLegacyCallMediaControl *gplcmc; //defined global
ITBasicCallControl *gpCall;// defined global

// write this code in the part where u r entertaining an incoming call which has just arrieved

if(gplcmc == NULL)
{
gpCall->QueryInterface(IID_ITLegacyCallMediaControl,
(void **) &gplcmc);
gplcmc->DetectDigits(LINEDIGITMODE_DTMF);// start listening for digits
gplcmc->Release();
gplcmc = NULL;
}

u also must tell tapi that u want to listen for DTMF digits, for this purpose register "TE_DIGITEVENT" with other events.

gpTapi->put_EventFilter( TE_CALLNOTIFICATION | TE_CALLSTATE
| TE_CALLMEDIA | TE_DIGITEVENT );

and now u will receive an event "TE_DIGITEVENT" whenever user (on the other end, which may b a telefone or some Telephony software) presses some digit, to get the digit pressed by user use this code in ur application.

ITDigitDetectionEvent *pdde;
char dtmf;
pEvent->QueryInterface(IID_ITDigitDetectionEvent, (void **)&pdde);
pdde->get_Digit((unsigned char *)&dtmf);
pdde->Release();

and now u have the digit pressed by the user in "dtmf" here pEvent is the object associated with this event (in this case it was "ITDigitDetectionEvent").
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if anyone could convert it into Vb.net code and let me know

http://www.codeproject.com/useritems/CShart_TAPI_3x.asp

Does most of it. 3rd hit on Google.

Not Usefull, Is there anyone who could just write the above code in vb.net?