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

[Christof Ressi]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-dev/attachments/20200319/49624f55/attachment.html>