For Java, I'm using the CsoundCallbackWrapper class.  I think Istvan
put this in a long while ago to get around dealing with pointers in
Java, but it works well.  I subclass from CsoundCallbackWrapper and
override the MessageCallback method, and when initializing the object
pass in a Csound object and call SetMessageCallback on the wrapper,
like this:

            blueCallbackWrapper = new BlueCallbackWrapper(csound);
            blueCallbackWrapper.SetMessageCallback();

I'm not sure if this is available in Python, but if so, it might be
worth checking out (and you can override other methods, like those for
MIDI in and out, Yield callback, etc.).

steven

On Mon, Oct 27, 2008 at 10:03 AM, victor <Victor.Lazzarini@nuim.ie> wrote:
> I don't know about CppSound, but the callbacks work fine
> with the Csound class.
>
> Victor
> ----- Original Message ----- From: "Chuckk Hubbard"
> <badmuthahubbard@gmail.com>
> To: <csound@lists.bath.ac.uk>
> Sent: Monday, October 27, 2008 2:45 PM
> Subject: [Csnd] Re: Re: Re: Re: Re: Re: Querying available audio devices
>
>
>> Using CppSound instead of Csound, the cs.Compile() line gives me a
>> segmentation fault and crashes the interpreter.
>> For me, Csound messages print to the interpreter terminal by default;
>> I haven't yet been able to stop them.
>> I used this:
>>
>> import csnd
>> csdlog = ''
>> def csdsave(s):
>>   global csdlog
>>   csdlog += s
>>
>> cs = csnd.CppSound()
>> cs.PreCompile()
>> cs.SetMessageCallback(csdsave)
>> cs.Compile("test.csd")
>>
>> Python exits.
>> -Chuckk
>>
>> On Mon, Oct 27, 2008 at 3:39 PM, victor <Victor.Lazzarini@nuim.ie> wrote:
>>>
>>> Works here:
>>>
>>> import csnd
>>> cs = csnd.Csound()
>>>
>>> cs.PreCompile()
>>>
>>> def somefunc(s):
>>>   print s
>>>
>>> cs.SetMessageCallback(somefunc)
>>>
>>> cs.Compile("test.csd")
>>>
>>> ... messages get printed to the interpreter terminal
>>>
>>>
>>> Victor
>>>
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Chuckk Hubbard"
>>> <badmuthahubbard@gmail.com>
>>> To: <csound@lists.bath.ac.uk>
>>> Sent: Monday, October 27, 2008 1:18 PM
>>> Subject: [Csnd] Re: Re: Re: Re: Querying available audio devices
>>>
>>>
>>>> More precisely, I get:
>>>>
>>>>>>> cs.SetPythonMessageCallback(csdlog)
>>>>
>>>> Traceback (most recent call last):
>>>>  File "<stdin>", line 1, in <module>
>>>>  File "/usr/lib/python2.5/csnd.py", line 1737, in
>>>> SetPythonMessageCallback
>>>>  return _csnd.Csound_SetPythonMessageCallback(*args)
>>>> AttributeError: 'module' object has no attribute
>>>> 'Csound_SetPythonMessageCallback'
>>>>
>>>>
>>>> Looking a little closer it looks like that's actually a problem, not
>>>> just me doing the wrong thing.  I'll try replacing my csnd.py and
>>>> _csnd.so files.
>>>> -Chuckk
>>>>
>>>> On Mon, Oct 27, 2008 at 3:08 PM, Chuckk Hubbard
>>>> <badmuthahubbard@gmail.com> wrote:
>>>>>
>>>>> The closest I have available is .setPythonMessageCallback() for
>>>>> CppSound, and .SetPythonMessageCallback() for Csound class.
>>>>> .SetPythonMessageCallback() somehow can't find the attribute, although
>>>>> it is listed with dir(CppSound) and help(CppSound), and
>>>>> .setPythonMessageCallback() takes 1 argument (self), won't take a
>>>>> function as argument.
>>>>>
>>>>> -Chuckk
>>>>>
>>>>> On Mon, Oct 27, 2008 at 2:53 PM, victor <Victor.Lazzarini@nuim.ie>
>>>>> wrote:
>>>>>>
>>>>>> Use the Csound() (or derived) class and the
>>>>>> Csound::SetMessageCallback()
>>>>>> method.
>>>>>>
>>>>>> the callback should be something like
>>>>>>
>>>>>> def  mcallback(s):
>>>>>>  # s is a string
>>>>>>  # e.g. you can print it
>>>>>>  print s
>>>>>>
>>>>>>
>>>>>> cs.SetMessageCallback(mcallback)
>>>>>>
>>>>>>
>>>>>> Victor
>>>>>> ----- Original Message ----- From: "Chuckk Hubbard"
>>>>>> <badmuthahubbard@gmail.com>
>>>>>> To: <csound@lists.bath.ac.uk>
>>>>>> Sent: Monday, October 27, 2008 12:04 PM
>>>>>> Subject: [Csnd] Re: Re: Querying available audio devices
>>>>>>
>>>>>>
>>>>>>> Sounds like a plan.  I'll let people choose from whichever modules
>>>>>>> are
>>>>>>> available for their platform and then see the devices for whatever
>>>>>>> they choose.
>>>>>>>
>>>>>>> I tried directing both stderr and stdout to file objects, and didn't
>>>>>>> pick up the Csound output from cs.compile().  Anyone know how I do
>>>>>>> that in Python?
>>>>>>>
>>>>>>> -Chuckk
>>>>>>>
>>>>>>> On Mon, Oct 27, 2008 at 11:12 AM, victor <Victor.Lazzarini@nuim.ie>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> For -+rtaudio you can just check the platform OS and the
>>>>>>>> modules for each are well-defined (ie portaudio and alsa for linux,
>>>>>>>> etc).
>>>>>>>>
>>>>>>>> The only way I think is to run csound with -odac99, then parse
>>>>>>>> the message output.
>>>>>>>>
>>>>>>>> Perhaps an API function to do this might be possible, but it
>>>>>>>> will need to be implemented by the IO modules.
>>>>>>>>
>>>>>>>> Regards
>>>>>>>>
>>>>>>>> Victor
>>>>>>>>
>>>>>>>> ----- Original Message ----- From: "Chuckk Hubbard"
>>>>>>>> <badmuthahubbard@gmail.com>
>>>>>>>> To: "Csound List" <csound@lists.bath.ac.uk>
>>>>>>>> Sent: Monday, October 27, 2008 7:54 AM
>>>>>>>> Subject: [Csnd] Querying available audio devices
>>>>>>>>
>>>>>>>>
>>>>>>>>> Is there a way to do this with the API?  To build a list of
>>>>>>>>> available
>>>>>>>>> devices to show in my app?
>>>>>>>>> I think it would have to know possible values for both -+rtaudio
>>>>>>>>> and
>>>>>>>>> -odac, no?
>>>>>>>>>
>>>>>>>>> -Chuckk
>>>>>>>>> --
>>>>>>>>> http://www.badmuthahubbard.com
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Send bugs reports to this list.
>>>>>>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>>>>>>>>> "unsubscribe
>>>>>>>>> csound"
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Send bugs reports to this list.
>>>>>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>>>>>>>> "unsubscribe
>>>>>>>> csound"
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> http://www.badmuthahubbard.com
>>>>>>>
>>>>>>>
>>>>>>> Send bugs reports to this list.
>>>>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>>>>>>> "unsubscribe
>>>>>>> csound"
>>>>>>
>>>>>>
>>>>>>
>>>>>> Send bugs reports to this list.
>>>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>>>>>> "unsubscribe
>>>>>> csound"
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> http://www.badmuthahubbard.com
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> http://www.badmuthahubbard.com
>>>>
>>>>
>>>> Send bugs reports to this list.
>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>>>> csound"
>>>
>>>
>>>
>>> Send bugs reports to this list.
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>>> csound"
>>>
>>
>>
>>
>> --
>> http://www.badmuthahubbard.com
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>