function IsCurrentDeleted(dbf :integer): integer;

var
  dbf :integer;
  r, x :integer;
begin
  dbf := OpenBase( 'filename.dbf' );
  if dbf <> 0 then
  begin
    x := 0;
    for r := 0 to RecCount(dbf)-1 do
    begin
      ReadRecord(dbf, r);
      if IsCurrentDeleted(dbf) then
         x := x + 1;
    end;
    showmessage( inttostr(x) + ' deleted records.' );
    CloseBase(dbf);
  end;
end.