Wide characters and menu

[Юрий Дмитришин]

Hello.
I have a database (PostgreSQL) with tables stored in Unicode (Cyrillic).
Seems my code doesn't work when I try to use output of the database query as menu items. Here's a code:

#include <ncursesw/panel.h>
#include <ncursesw/menu.h>
#include <wchar.h>
...
PGconn *connect;
connect = PQconnectdb(ConnectionString);
PGresult *OrderData;
OrderData = PQexec(connect, Query);
my_items = (ITEM **)calloc(PQntuples(OrderData)+1, sizeof(ITEM *));
for(i = 0; i < PQntuples(OrderData); ++i) {
  my_items[i] = new_item(PQgetvalue(OrderData, i, 1), "");
};
my_menu = new_menu((ITEM **)my_items);
...
Compile: gcc 1.c -lmenu -lncursesw -lpq
So, with parameter PQgetvalue(OrderData, i, 0) my function works fine because this column is 'id'. But result of PQgetvalue(OrderData, i, 1) contains cyrillic symbols and my code doesn't work.

Regards, Yuriy Dmitrishin.