[PD-dev] Default value for unconnected signal input, or connection detection in an external

[Antoine Rousseau]

also you can have a look to moonlib/dinlet~, which (I think) does what you
want.
source is there:
https://github.com/MetaluNet/moonlib/blob/externals/moonlib/dinlet%7E.c





Le jeu. 19 mars 2020 à 16:41, x nor <x37v.alex at gmail.com> a écrit :

> Ahh okay, these are not main signal inputs (the first inlet is used for
> something already).. and I want to just use `m_pd.h` so I guess I'll add
> the creation arguments.
> Good to know about CLASS_MAINSIGNALIN float setting for the first inlet
> though!
> Thanks!
> -Alex
>
> On Thu, Mar 19, 2020 at 8:28 AM Christof Ressi <info at christofressi.com>
> wrote:
>
>> Hi,
>>
>> for the first inlet you can simply set the float field passed to
>> CLASS_MAINSIGNALIN. This is actually done by many Pd objects, e.g.
>> "phasor~", "osc~", etc.
>>
>> For other inlets it's a bit more tricky. If you're ok with including
>> "m_imp.h", you can use "obj_findsignalscalar" which returns a pointer to
>> the scalar value for the Nth signal inlet.
>>
>> Christof
>> On 19.03.2020 16:16, x nor wrote:
>>
>> Hey Christof and dev list,
>>
>> Christof,
>> I think it was you that did the work that allowed for a default value for
>> unconnected [inlet~] in the inlet_features branch that didn't get merged?
>>
>> I'm wondering, is there a way to do that with externals as is without
>> modifying the pure data source? Either that or a way to detect connectivity?
>>
>> I want to provide some audio rate controls to an external I'm writing but
>> not *require* them for operation. 0 isn't a good default for some of these
>> (amp or frequency multiplication).
>> If its not possible to provide defaults or detect connectivity (so i can
>> provide my own defaults) I'll probably just provide optional creation args
>> to opt in to these audio rate parameters.. but that just ends up being a
>> lot more work so I figured I'd ask first :)
>>
>> Thanks,
>> Alex
>>
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