+/**
+ * push on_screen_reply event
+ *
+ * #### Parameters
+ * - request : the request
+ *
+ * #### Return
+ * 0 : success
+ * others : fail
+ *
+ */
+int HS_Client::on_screen_reply(afb_req_t request)
+{
+ int ret = 0;
+ const char* value = afb_req_value(request, _reply_message);
+ if (value) {
+ AFB_INFO("push %s event message [%s].", __FUNCTION__, value);
+ struct json_object* push_obj = json_object_new_object();
+ hs_add_object_to_json_object_str( push_obj, 4, _reply_message, value,
+ _type, __FUNCTION__);
+ afb_event_push(my_event, push_obj);
+ }
+ else {
+ AFB_WARNING("Please input reply_message");
+ ret = AFB_EVENT_BAD_REQUEST;
+ }
+ return ret;
+}
+
+/**
+ * subscribe event
+ *
+ * #### Parameters
+ * - request : the request
+ *
+ * #### Return
+ * 0 : success
+ * others : fail
+ *
+ */
+int HS_Client::subscribe(afb_req_t request)
+{
+ int ret = 0;
+ const char *value = afb_req_value(request, _event);
+ if(value) {
+ AFB_INFO("subscribe event %s", value);
+ if(!isSupportEvent(value)) {
+ AFB_WARNING("subscibe event isn't existing.");
+ ret = AFB_EVENT_BAD_REQUEST;
+ }
+ else {
+ event_list.insert(std::string(value));
+ if(!subscription) {
+ ret = afb_req_subscribe(request, my_event);
+ if(ret == 0) {
+ subscription = true;
+ }
+ }
+ }
+ }
+ else {
+ AFB_WARNING("Please input event name");
+ ret = AFB_EVENT_BAD_REQUEST;
+ }
+ return ret;
+}
+
+/**
+ * unsubscribe event
+ *
+ * #### Parameters
+ * - request : the request
+ *
+ * #### Return
+ * 0 : success
+ * others : fail
+ *
+ */
+int HS_Client::unsubscribe(afb_req_t request)
+{
+ int ret = 0;
+ const char *value = afb_req_value(request, _event);
+ if(value) {
+ AFB_INFO("unsubscribe %s event", value);
+ event_list.erase(std::string(value));
+ if(event_list.empty()) {
+ ret = afb_req_unsubscribe(request, my_event);
+ }
+ }
+ else {
+ AFB_WARNING("Please input event name");
+ ret = AFB_EVENT_BAD_REQUEST;
+ }
+ return ret;
+}
+
+/**
+ * showWindow event
+ *
+ * #### Parameters
+ * - request : the request
+ *
+ * #### Return
+ * 0 : success
+ * others : fail
+ *
+ */
+int HS_Client::showWindow(afb_req_t request)
+{
+ AFB_INFO("%s application_id = %s.", __FUNCTION__, my_id.c_str());
+ int ret = 0;