Has anyone used the channelCallback functions in Python? An example would be
great....

Richard



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I thinkthey are called GetChannel and SetChannel?

No. They do not work with callbacks. But you can access them between k cycles without any problem. At the end of each preformKsmps () you can update accordingly in both directions.

cb.py seems to work fine.
========================
Dr Victor Lazzarini
Senior Lecturer
NUI Maynooth, Ireland
victor dot lazzarini at nuim dot ie




On 30 Mar 2014, at 21:51, Richard van Bemmelen  wrote:

> Ok thanks, how could I use GetChannel as a callback? Is the cb.py example still valid?
> 
> 
> 2014-03-30 21:52 GMT+02:00 Rory Walsh :
> I thinkthey are called GetChannel and SetChannel?
> 
> 
> On 30 Mar 2014 20:45, "Richard van Bemmelen"  wrote:
> I want to be able to respond to chnset values in my Python GUI. Since these can occur asynchronously, callbacks are needed. But I understand the ..channelCallback() functions are meant for invalues/outvalues, which API functions should I use for chnsets?
> 
> 
> 
> 
> 2014-03-30 17:59 GMT+02:00 zappfinger :
> Has anyone used the channelCallback functions in Python? An example would be
> great....
> 
> Richard
> 
> 
> 
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and i think that You could also take a look to
https://github.com/csound/csoundAPI_examples/tree/master/python
if i remember right there are examples of what You are trying to do.

ciao,
francesco.




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Look at shapes.py. It has a VU meter of sorts.
On 31 Mar 2014, at 21:24, Richard van Bemmelen wrote:

> Well, I use QML/Pyside to create GUI's like sliders and LEDs or VU meters.
> The sliders work fine, but I am struggeling get the LEDs or VU meters to display values coming form Csound via chnset().
> (Oh yeah, this runs as a server class and there is a layer of Pyro so that csound could run say on a Raspberry Pi and the GUI runs on another machine, connecting to it via Pyro).
> 
> Richard
> 
> 
> 2014-03-30 23:23 GMT+02:00 Dominic Melville :
> What exactly are you wanting to respond to and with what? If you've got a code snippet of your python gui I might be able to help as I've used getchannel etc with a python app successfully not too long ago. I remember it taking a while to get working as I wanted it. 
> 
> Thanks 
> Dominic 
> 
> 
> On Sunday, March 30, 2014, Richard van Bemmelen  wrote:
> I want to be able to respond to chnset values in my Python GUI. Since these can occur asynchronously, callbacks are needed. But I understand the ..channelCallback() functions are meant for invalues/outvalues, which API functions should I use for chnsets?
> 
> 
> 
> 
> 2014-03-30 17:59 GMT+02:00 zappfinger :
> Has anyone used the channelCallback functions in Python? An example would be
> great....
> 
> Richard
> 
> 
> 
> --
> View this message in context: http://csound.1045644.n5.nabble.com/channelCallback-in-Python-tp5733658.html
> Sent from the Csound - General mailing list archive at Nabble.com.
> 
> 
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here
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> 
> 
> 
> 
> 

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





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