Hi Thiago!
Thanks for this hint. I did it similar. I stored the pointer to my main
object in a global variable. Then, the registered C callback function
just calls the real callback (a member of my main object).
Unfortunately sometimes my application crashes and I have no idea why :-(
thanks
klaus
tloginbr-pjsip at yahoo.com.br schrieb:
> I have one application in c++. My solution is not the
> most pretty, but it works just fine. I have one file
> called app_main.cpp that has all my callback functions
> in plain C that I register with pjsua. When the call
> comes in (on_incoming_call) I use
> pjsua_call_set_user_data to save the pointer to the
> object that I have my callback function (the real
> one). All my callbacks that are inside app_main.cpp
> only get the address of the object with
> pjsua_call_get_user_data and then call the real
> callback function from this object. Bellow is one
> example for the callback that receives dtmf:
>
> static void on_dtmf_digit(pjsua_call_id call_id, int
> digit )
> {
> void *tpjcCallPtr;
> tpjcCallPtr = pjsua_call_get_user_data(call_id);
> ((TPJCall*)tpjcCallPtr)->ReceiveDTMF((char)digit);
> }
>
>
> My object that holds the code for the callback is of
> type TPJCall that has a member function called
> ReceiveDTMF. It doesn't even need to be static or
> anything.
>
> Thiago
>
>> Hi!
>>
>> I'm trying to add pjsip to a QT C++ application.
>> This gives me headaches
>> as I have no clue how to make callbacks in C++.
>> There are lots of
>> different approaches (static member function as
>> wrapper, templates ...).
>>
>> I tried the static member function wrapper with
>> logging callbacks but my
>> application crashes ~50%.
>>
>> I wonder if someone have practical tips for my how
>> to connect pjsip's
>> callbacks to member functions.
>>
>> thanks
>> klaus
>>
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