Jean-Michaël Celerier

Is there a way, in the C API, given a t_object or a t_class, to list the attributes of the object and their metadata (range, etc) ?

Is there a way, in the C API, given a t_object or a t_class, to list the attributes of the object and their metadata (range, etc) ? 
Thanks!

access-to-attributes-of-another-object-from-the-c-api

void object_list_attributes_and_their_metadata(t_object *obj)

err = object_attr_getnames(obj, &attrcount, &attrnames);

post("attrname: %s", attrnames[i]->s_name);

attr = object_attr_get(obj, attrnames[i]);

err = object_attr_getnames(attr, &attrcount2, &attrnames2); // attr metadata

post("metadata: %s", attrnames2[j]->s_name);

err = object_attr_getvalueof(attr, attrnames2[j], &argc, &argv); // metadata values

I coded this function from the top of my head without testing it.

Please use it with care, however you get the idea...

yes, there is:

void object_list_attributes_and_their_metadata(t_object *obj)
{
    void *attr;
    long attrcount = 0;
    t_symbol **attrnames = NULL;
    void *attr2;
    long attrcount2 = 0;
    t_symbol **attrnames2 = NULL;
    long argc = 0;
    t_atom *argv = NULL;
    t_max_err err;
    long i, j, k;
    err = object_attr_getnames(obj, &attrcount, &attrnames);
    if (!err && attrcount && attrnames) {
        for (i = 0; i < attrcount; i++) {
            post("-");
            post("attrname: %s", attrnames[i]->s_name);
            attr = object_attr_get(obj, attrnames[i]);
            err = object_attr_getnames(attr, &attrcount2, &attrnames2); // attr metadata
            if (!err && attrcount2 && attrnames2) {
                for (j = 0; j < attrcount2; j++) {
                    post("metadata: %s", attrnames2[j]->s_name);
                    err = object_attr_getvalueof(attr, attrnames2[j], &argc, &argv);  // metadata values
                    if (!err && argc && argv) {
                        for (k = 0; k < argc; k++) {
                            postatom(argv+k);
                        }
                    }
                    if (argv) {
                        sysmem_freeptr(argv);
                    }
                }
            }
            if (attrnames2) {
                sysmem_freeptr(attrnames2);
            }
        }
    }
    if (attrnames) {
        sysmem_freeptr(attrnames);
    }
}

I coded this function from the top of my head without testing it.
Please use it with care, however you get the idea...

ah, thanks, it's object_attr_getnames that I could not find in the SDK API.

Access to attributes of another object from the C API