Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
   Rect: TRect; State: TGridDrawState);

   procedure WriteText(StringGrid: TStringGrid; ACanvas: TCanvas; const ARect: TRect;
     const Text: string; Format: Word);
   const
     DX = 2;
     DY = 2;
   var
     S: array[0..255] of Char;
     B, R: TRect;
   begin
     with Stringgrid, ACanvas, ARect do
     begin
       case Format of
         DT_LEFT: ExtTextOut(Handle, Left + DX, Top + DY,
             ETO_OPAQUE or ETO_CLIPPED, @ARect, StrPCopy(S, Text), Length(Text), nil);

         DT_RIGHT: ExtTextOut(Handle, Right - TextWidth(Text) - 3, Top + DY,
             ETO_OPAQUE or ETO_CLIPPED, @ARect, StrPCopy(S, Text),
             Length(Text), nil);

         DT_CENTER: ExtTextOut(Handle, Left + (Right - Left - TextWidth(Text)) div 2,
             Top + DY, ETO_OPAQUE or ETO_CLIPPED, @ARect,
             StrPCopy(S, Text), Length(Text), nil);
       end;
     end;
   end;

   procedure Display(StringGrid: TStringGrid; const S: string; Alignment: TAlignment);
   const
     Formats: array[TAlignment] of Word = (DT_LEFT, DT_RIGHT, DT_CENTER);
   begin
     WriteText(StringGrid, StringGrid.Canvas, Rect, S, Formats[Alignment]);
   end;
 begin
   // Right-justify columns 0-2 
  // Spalten 0-2 rechts ausrichten. 
  if ACol in [0..2] then
     Display(StringGrid1, StringGrid1.Cells[ACol, ARow], taRightJustify)

     // Center the first row 
    // Erste zeile zentrieren 
    if ARow = 0 then
       Display(StringGrid1, StringGrid1.Cells[ACol, ARow], taCenter)
   end;