[PD] another basic pd question/creation arguments in abstraction

IOhannes m zmoelnig zmoelnig at iem.at
Thu Oct 18 10:00:00 CEST 2007

Atte André Jensen wrote:
> Roman Haefeli wrote:
>> if '0' is not part of your
>> intended argument range, you can check in your abstraction, if the
>> argument is '0' and assume, when it is '0', that it was not specified. 
> Ok, thanks.
> What can I do then about audio rate inlets? As far as I understand they 
> supply continious streams thus overriding and creation arguments I might 
> supply. Is there something like [sel~] that'll only send the signal on 
> should it be different from 0?

this is more tricky.
what you are really asking for is a  way to detect whether an inlet is 
connected. i don't know of any way.

control signals can be "0" too...
of course you could do something like

|  [==~] [default_signal~]
|  |     |
|  [*~   ]
|  |

but that is most likely not what you want.

there is also a [sigzero~] object in zexy which gives you information on 
whether the entire signal block is "0" (you could do this with [env~] 

but basically i would suggest to not do something like that at all.


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