Current Query in Query mode

Question

Hello.
I have the following scenario.
When user presses f7 to enter query mode, he has a choice to immediately press f8 to execute query(retrieve all data) or to enter values in random fields and then press f8. So in first case, if user doesn't enter any values, I need to know that user didn't enter any values, so I can execute a select statement with proper where clause.
So is it possible to get select statement that would be executed on pressing f8 in pre-query trigger and modify it or just to know if user has entered any values while in query mode ?
Thanks in advance.

Answer 1

I've encountered another problem.
When I loop through all items on data block, i don't know how to get current value of that item.
Here's part of my code:
loop
w_nextItem := get_item_property(w_block||w_nextItem,nextitem);
begin
w_item := find_item(w_block||w_nextItem);
if lower(get_item_property(w_block||w_nextItem,item_type)) <> 'button' then
if get_item_property(w_block||w_nextItem, database_value) is not null then
return true;
end if;
end if;
exception when others then
null;
end;
exit when w_lastItem = w_nextItem;
end loop;
I tried to use database_value property, but that would return value fetched from database and I need the one user entered in query mode.
So is it possible to get the value of an item through properties or somehow else ?
Thanks.