>Yes, reuery() for listbox is after SELECT.
>( SELECTs ... are in DO CASE loop - and look like this:
>
>
>case thisform.C1.value==.T. .and. thisform.C2.value==.T. .and.thisform.C3.value == .F. .and. thisform.C4.value== .T.
> *
> SELECT NAZIV from OBJEKT WHERE alltrim(POGON) == thisform._C1 .and. ;
> TIP == thisform._C2 .and. ;
> GRUPA == thisform._C4 ;
> order by NAZIV into ARRAY THISFORM.IZABERI
>
>( thisfrom._Cn keeps last value from combobox )

Are you saying you have 16 cases here? Just hope you don't get two more checkboxes, because you'd have 64 CASEs... how about

cCondition=".t."
if thisform.c1.value
   cCondition=cCondition+" and alltrim(pogon)==thisform._c1)"
endif
if thisform.c2.value
   cCondition=cCondition+" and tip==thisform._c2)"
endif
... (stuff for c3 and c4 here... and more if you need)
select naziv from objekat where &cCondition;
   order by ...

That way you can build your condition as it comes. If all four checkboxes are .f., you get all the records.