' This method draws a focus rectangle on Button2 using the 
' handle and client rectangle of Button2.
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
    ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), _
    Button2.ClientRectangle)
End Sub

    // This method draws a focus rectangle on Button2 using the 
    // handle and client rectangle of Button2.
    private void Button1_Click(System.Object sender, System.EventArgs e)
    {
        ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), 
            Button2.ClientRectangle);
    }

// This method draws a focus rectangle on Button2 using the 
// handle and client rectangle of Button2.
void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   ControlPaint::DrawFocusRectangle( Graphics::FromHwnd( Button2->Handle ), Button2->ClientRectangle );
}