+ * @brief Sets the default button to display highlight on the notification.
+ * @since_tizen 3.0
+ * @remarks If you want to default button is off, you set that index is zero
+ * @param[in] noti The notification handle
+ * @param[in] index The notification button index
+ * @return #NOTIFICATION_ERROR_NONE on success,
+ * otherwise any other value on failure
+ * @retval #NOTIFICATION_ERROR_NONE Success
+ * @retval #NOTIFICATION_ERROR_INVALID_PARAMETER Invalid parameter
+ * @pre Notification handle should be created by notification_create().
+ * @see #notification_button_index_e
+ * @par Sample code:
+ * @code
+#include <notification.h>
+...
+{
+ notification_h noti = NULL;
+ int noti_err = NOTIFICATION_ERROR_NONE;
+
+ noti = notification_create(NOTIFICATION_TYPE_NOTI);
+ if(noti == NULL) {
+ return;
+ }
+
+ noti_err = notification_set_default_button(noti, NOTIFICATION_BUTTON_1);
+ if(noti_err != NOTIFICATION_ERROR_NONE) {
+ notification_free(noti);
+ return;
+ }
+
+ ...
+
+}
+ * @endcode
+ */
+int notification_set_default_button(notification_h noti, notification_button_index_e index);
+
+/**
+ * @brief Gets the default button to display highlight on the notification.
+ * @since_tizen 3.0
+ * @param[in] noti The notification handle
+ * @param[out] index The notification button index
+ * @return #NOTIFICATION_ERROR_NONE on success,
+ * otherwise any other value on failure
+ * @retval #NOTIFICATION_ERROR_NONE Success
+ * @retval #NOTIFICATION_ERROR_INVALID_PARAMETER Invalid parameter
+ * @pre Notification handle should be created by notification_create().
+ * @see #notification_button_index_e
+ * @par Sample code:
+ * @code
+#include <notification.h>
+...
+{
+ notification_h noti = NULL;
+ notification_button_index_e index;
+ int noti_err = NOTIFICATION_ERROR_NONE;
+
+ noti = notification_create(NOTIFICATION_TYPE_NOTI);
+ if(noti == NULL) {
+ return;
+ }
+
+ noti_err = notification_set_default_button(noti, &index);
+ if(noti_err != NOTIFICATION_ERROR_NONE) {
+ notification_free(noti);
+ return;
+ }
+
+ ...
+
+}
+ * @endcode
+ */
+int notification_get_default_button(notification_h noti, notification_button_index_e *index);
+
+/**