I'm actually interested in knowing whether there's a signal connected to the inlet of an abstraction.

I need it so I can automatically switch between the argument loaded in the abstraction and whatever is going to that inlet from a signal connection.

But I guess it is kinda impossible to it in a patch... so it may be only possible as an external...

"all of Pd's binops (e.g. [+~]) take an optional argument, and the type

of the second inlet depends on the existance of this argument (if
there is no argument, you get a signal inlet, if there is an argument
you get a message inlet)."

but is it possible to write an external with a different behaviour like I need?

"finally: i haven't looked at your abstraction, but i guess the problem

you are facing is to distinguish between no argument and the default
"0" argument. it's possible to do this as a vanilla abstraction. check
the list archives for examples."

that seems like a separate issue, one that I actually care about, so I'll maybe check it.

cheers

2015-02-25 5:25 GMT-03:00 IOhannes m zmoelnig <zmoelnig@iem.at>:

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Hash: SHA256

On 2015-02-24 18:52, Alexandre Torres Porres wrote:
> "I think that even in the case of an external, it's difficult to
> know whether there's a signal connected to a signal inlet, or not
> (...) I think Eric Lyon's externals do what you want"
>
> I guess it can be tricky, but not impossible.

i think you are asking the wrong question here: you are not at all
interested in whether an object has a signal connected or not, but
only whether you can provide a "default signal".

while the former might be tricky, the latter might not be.

otoh, i'm not entirely sure whether you "should" really want what you
are asking for.
in a "max compat" sense it might make sense, but it's not very Pd'ish:
all of Pd's binops (e.g. [+~]) take an optional argument, and the type
of the second inlet depends on the existance of this argument (if
there is no argument, you get a signal inlet, if there is an argument
you get a message inlet).

finally: i haven't looked at your abstraction, but i guess the problem
you are facing is to distinguish between no argument and the default
"0" argument. it's possible to do this as a vanilla abstraction. check
the list archives for examples.

fgmasdr
IOhannes

PS: as far as zexy is concerned, i will keep it as Pdish as possible.
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