//+------------------------------------------------------------------+
//|                                                  Prob_struct.mq4 |
//|                                                              0ll |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "0ll"
#property strict

struct   prStruct   { double ar11[3]; int ar22[3]; };
         prStruct   st[2];

void OnStart()
{
   st[0].ar11[0] = Ask;
   st[0].ar22[1] = MarketInfo(NULL, MODE_SPREAD);
   st[1].ar11[0] = Bid;
   myFunc(st);
}

void myFunc(prStruct &aaa[])
{
   Alert("Структура ", aaa[0].ar11[0]);
}