[amibroker] First tick after a defined time

[BG]

Hi,

In RT mode with IB, how can i detect the first tick after a defined
time for a "foreign" ticker  ?

This script only works for the selected ticker :

if(LastValue(TimeNum()) > OpenTime) { 
        FirstTickSymbol = GetRTDataForeign("last" , symbol) ;
        FirstTimeSymbol = LastValue(DateTime()) ;
}


Thanks.