#include <ruby.h>

void t_free(Image *m)
{
 myown_free(*m);
 free(m);
}

static VALUE t_allocate(VALUE obj)
{
 struct my *m = malloc(sizeof(struct my));
 if( m == NULL )
  rb_raise(rb_eNoMemError, "Brakuje pamięci na obiekt Obraz (%zu bajty)", sizeof(struct my));

return Data_Wrap_Struct(obj, NULL, t_free, m);
}

how creating ???

VALUE t_neww(VALUE obiekt)
{
VALUE obj;

 obj = t_allocate(obiekt);
 rb_obj_call_init(obj, 1, NULL);

return obj;
}


void Init_My()
{
 ca = rb_define_class("MyOwn", rb_cObject);
 rb_define_alloc_func(ca,t_allocate);

 rb_define_method(ca, "initialize", t_init, 2); //it working
 rb_define_method(ca, "neww", t_neww, 0); // it no working