Of course using loadbang is a terrible idea as it'll only bind and work when loading a patch, not when creating the object.
So I guess I need to use both strategies... which is quite hacky indeed...
Hence, I'm still hoping for a better solution
Em dom., 26 de out. de 2025 às 15:58, Alexandre Torres Porres < porres@gmail.com> escreveu:
I'm coding an external that can is like a [receive] object, but it can expand its "$0" argument according to the parent patch if you have a first float argument for the depth level.
I can do it if I escape it with a backslash, as in [receiver 1 $0-x], but I wish I could just do it without escaping. I can do that if I query for the raw argument in "x->x_obj.te_binbuf".
The problem is I can't do that in the "new" function, since Pd just crashes. On the other hand, I do need to bind the symbol right there so the object is properly initialized.
I tried using a clock with '0' delay in the new function and then initialize it like this:
*static* t_symbol *receiver_get_rcv(t_receiver *x){
*int* idx = 1 + x->x_depth_arg; t_binbuf *bb = x->x_obj.te_binbuf; *if*(binbuf_getnatom(bb) > idx){ *char* buf[128]; atom_string(binbuf_getvec(bb) + idx, buf, 128); *return*(gensym(buf)); } *else* *return*(&s_);}
*static* *void* receiver_bindlater(t_receiver *x){
x->x_raw = receiver_get_rcv(x); x->x_sym = canvas_realizedollar(x->x_cv, x->x_raw); *if*(x->x_sym != &s_){ pd_bind(&x->x_obj.ob_pd, x->x_sym_1); x->x_bound = 1; } clock_free(x->x_bindclock);}
It works, but if I have a patch that is initialized with a [loadbang] that sends a value to this receiver, I won't get it unless I also use [delay 0] in the loadbang.
So what is my hack now, I am using the "init bang", something like
*static* *void* receiver_loadbang(t_receiver *x, t_floatarg action){
*if*(action == LB_INIT) receiver_bind(x);}
It works, as it is initialized before a loadbang in the sender, so it's "cool".
Nonetheless, I wanted to come here to ask if I am being smart, or if there's a better or smarter way to do this. Or, if this is not smart at all and there's no safe way to do this.
thanks