Colorful text in the same line in TRichEdit

How to write text in the same line but with different color? (I use richedit).

procedure TForm1.btnEClick(sender: TObject);
begin

  m0.SelAttributes.Color := clBlue;
  m0.SelAttributes.Style := [fsBold];
  m0.lines.add('This is blue and it is bold');
  m0.SelAttributes.Color := clGreen;
  m0.SelAttributes.Style := [fsBold];
  m0.lines.add ('This is Green and it is bold');
  m0.lines.add('');
  m0.lines.add('But how to write text in the same line with different color?');
  // i want to have both blue and green in the same line 
end;

Best Wishes, Bee

You're on the right track. Just change SelAttributes and use SelText instead of Lines.Add:

procedure TForm4.FormCreate(Sender: TObject);
begin
  RichEdit1.Clear;
  RichEdit1.SelAttributes.Color := clBlue;
  RichEdit1.SelAttributes.Style := [fsBold];
  RichEdit1.SelText := 'This is bold blue text.';
  RichEdit1.SelAttributes.Color := clRed;
  RichEdit1.SelAttributes.Style := [fsItalic];
  RichEdit1.SelText := #32'This is italic red text';
end;

This produces