/* code for the "obj5" pd class. This shows "gimme" arguments, which have variable arguments parsed by the routines (both "new" and "rats".) */ #include "m_pd.h" typedef struct obj5 { t_object x_ob; } t_obj5; /* the "rats" method is called with the selector (just "rats" again) and an array of the typed areguments, which are each either a number or a symbol. We just print them out. */ void obj5_rats(t_obj5 *x, t_symbol *selector, int argcount, t_atom *argvec) { int i; post("rats: selector %s", selector->s_name); for (i = 0; i < argcount; i++) { if (argvec[i].a_type == A_FLOAT) post("float: %f", argvec[i].a_w.w_float); else if (argvec[i].a_type == A_SYMBOL) post("symbol: %s", argvec[i].a_w.w_symbol->s_name); } } t_class *obj5_class; /* same for the "new" (creation) routine, except that we don't have "x" as an argument since we have to create "x" in this routine. */ void *obj5_new(t_symbol *selector, int argcount, t_atom *argvec) { t_obj5 *x = (t_obj5 *)pd_new(obj5_class); int i; post("new: selector %s", selector->s_name); for (i = 0; i < argcount; i++) { if (argvec[i].a_type == A_FLOAT) post("float: %f", argvec[i].a_w.w_float); else if (argvec[i].a_type == A_SYMBOL) post("symbol: %s", argvec[i].a_w.w_symbol->s_name); } return (void *)x; } void obj5_setup(void) { /* We specify "A_GIMME" as creation argument for both the creation routine and the method (callback) for the "rats" message. */ obj5_class = class_new(gensym("obj5"), (t_newmethod)obj5_new, 0, sizeof(t_obj5), 0, A_GIMME, 0); class_addmethod(obj5_class, (t_method)obj5_rats, gensym("rats"), A_GIMME, 0); }