CTRL_PROPERTIES(EditInt)
    PROPERTY(int, Min)
    PROPERTY_SET(bool, "NotNull", NotNull)
    PROPERTY_GET(bool, "NotNull", IsNotNull)
END_CTRL_PROPERTIES

static void GetSet_uniquebyline(Ctrl& c, Value& v, const String& prop, bool set)
{
   EditInt *c = dynamic_cast<EditInt>(&x);
   if(!c) return;
   if(prop == "Min" && set)
      c->Min(v);
   if(prop == "Min" && !set)
      v = c->GetMin();
   ....
}

INITBLOCK { RegisterCtrlGetSet(GetSet_uniquebyline); }