johnpitcairn

Given a patcher, I need to determine if that patcher is an instance in a poly~, and if so, get the instance number.

From the docs, I thought I'd do something like this, but I'm not getting anything returned for object_attr_getobj(patcher, gensym("parentclass")):

if(t_object *obj = object_attr_getobj(patcher, gensym("parentclass"))) {

    if(object_classname(obj) == gensym("poly~")) {

        // and if I get this far, how do I get the instance number?

Given a patcher, I need to determine if that patcher is an instance in a poly~, and if so, get the instance number. 

if(t_object *obj = object_attr_getobj(patcher, gensym("parentclass"))) {
// but obj is always null
	if(object_classname(obj) == gensym("poly~")) {
		// and if I get this far, how do I get the instance number?
	}
}


max-5-am-i-in-a-poly-get-the-instance-number

We are currently working on a Max 5 version of the oo objects, we received several requests from the community for this.

As for the specific idea of finding the instance number that belongs to a patcher loaded in a poly~, I'd say that could typically be done with a special utility method like the others that are defined in jpatcher_api.h. Does this method already exist? If not, are you planning to add such a method in the future?

Until then, would it be possible to directly access struct members of jpatcher or jbox to do this?

As for the specific idea of finding the instance number that belongs to a patcher loaded in a poly~, I'd say that could typically be done with a special utility method like the others that are defined in jpatcher_api.h. Does this method already exist? If not, are you planning to add such a method in the future? 

Bump again - any chance of someone throwing us a bone on this one, then we can get the oo objects out for testing? The objects do need to work in a poly~

The patcher-delete query/notification in my other question is less crucial, we cleanup at quit anyway so we'll just hold onto more memory than strictly necessary as the session continues and oo-patchers are deleted.

I think I got it, this code seems to do the job:

object_method(jp, gensym("getassoc"), &target);

    post("found %s", object_classname(target)->s_name);

    long voices = object_attr_getlong(target, gensym("voices"));

    post("total amount of voices: %ld", voices);

    if(m = zgetfn(target, gensym("getindex"))) index = (long)(*m)(target, jp);

Cycling, let us know if there is something very scary about this.. ;)

t_object *jp;
t_max_err err;
t_object *target;
method m;
long index = -1;

object_method(jp, gensym("getassoc"), &target);
if (target) {
	post("found %s", object_classname(target)->s_name);

	long voices = object_attr_getlong(target, gensym("voices"));
	post("total amount of voices: %ld", voices);

	if(m = zgetfn(target, gensym("getindex"))) index = (long)(*m)(target, jp);
	post("index: %ld", index);
}

Max 5: Am I in a poly~, get the instance number?