I develop with EMA(c++)
I decode the chain, I found the field "LONGNEXTLR"and"PREF_LINK" has the same value ,
what is the difference between them?
what are the effects of them?
According to some notes I found:
If you are constructing a display trigger from the value in the PREF_DISP field, then your application should use the contents of the PREF_LINK field in the first chain header record. If the PREF_LINK field is empty within the first chain record, or if you are constructing a simple chain display, your application should use the contents of the LONGNEXTLR field.
I suspect for your usage you can ignore PREF_LINK.