{Txtwidth.PAS}
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 {Sample code for the TextWidth function.}

  uses Graph;

 var
   Gd, Gm: Integer;
   Row: Integer;
   Title: String;
   Size: Integer;
 begin
   Gd := Detect;
   InitGraph(Gd, Gm, '');
   if GraphResult <> grOk then
     Halt(1);
   Row := 0;
   Title := 'Turbo Graphics';
   Size := 1;
   while TextWidth(Title) < GetMaxX do
   begin
     OutTextXY(0, Row, Title);
     Inc(Row, TextHeight('M'));
     Inc(Size);
     SetTextStyle(DefaultFont, HorizDir, Size);
   end;
   Readln;
   CloseGraph;
 end.