# Z_Order (Get Method) Gets the graphical object priority for receiving an event of mouse clicking on a chart ([CHARTEVENT_CLICK](/en/docs/constants/chartconstants/enum_chartevents)). ``` long  Z_Order() const ``` Return Value Priority of a graphical object, attached to the class instance. If there is no object attached, it returns 0. # Z_Order (Set Method) Sets the graphical object priority for receiving an event of mouse clicking on a chart ([CHARTEVENT_CLICK](/en/docs/constants/chartconstants/enum_chartevents)). ``` bool  Z_Order(    long  value      // graphical object priority    ) ``` Parameters value [in]  New value of priority of a graphical object for receiving the event [CHARTEVENT_CLICK](/en/docs/constants/chartconstants/enum_chartevents). Return Value true - success, false - cannot change the priority. Note Z_Order property manages a priority when handling clicks on graphical objects. By setting the value greater than 0 (default value), you can increase the object priority when handling mouse clicks.