unit MinBRadio;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    RadioGroup1: TRadioGroup;
    procedure RadioGroup1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.RadioGroup1Click(Sender: TObject);
var
  i : Integer;
begin
  with RadioGroup1 do
    for i := 0 to ComponentCount-1 do
      if Components[i] is TRadioButton then
        with TRadioButton(Components[i]) do
          if Checked then
            Font.Style := [fsBold]
          else
            Font.Style := [];
end;

end.