Sets a label in the system error message management for getting a section of the 'message tree'
public int GetBookmarkID()
public:
int GetBookmarkID();
Return Value
a serial number. save this value for later use
get all messages which have been declared since the given bookmark was set
int nBookmark2 = new Eplan.EplApi.Base.BaseException().GetBookmarkID();
...
SysMessagesCollection colSysMsg = new SysMessagesCollection(nBookmark2, Eplan.EplApi.Base.MessageLevel.Error);
SysMessagesEnumerator itSysMsg = colSysMsg.GetSysMsgEnumerator();
