Get OBJECT_ID from Print Button

Hi Sappers, I have a doubt related with BSP configurations. I have the next requirement: I need to know how can I get OBJECT_ID (ID Order) in Print button.

• Component IU:   SRQM_INCIDENT_H
• View:                   SRQM_INCIDENT_H/IncidentOV
• Method:               IF_BSP_WD_TOOLBAR_CALLGET~GET_BUTTONS

The target is get the ID of the order to be able to query all its information and , so I can coherently build the smartform .

Could you help me please?

Thanks above all.