Pointers: TLine and PTLine is not used anymore

There are no pointers in WPTools 5. This change was necessary to make support for .NET possible.

Any character can now be identified by its host paragraph (par : TParagraph) and the position (pos_in_par : Integer). The format routine still virtually split up a paragraph into lines, the offset and lengths of this lines can be retrieved using the TParagraph functions LineOffset and LineEndOffset.

If you use loops over all characters in the complete text you will use

var par : TParagraph;
      i : Integer;
begin
  par := WPRichText1.FirstPar;
  while par<>nil do 
  begin
    for i:=0 to par.CharCount-1 do
    begin
      // do something with par.CharItem[i]
    end;
    par := par.next;
  end;
end;