private void btnShowFields_Click(object sender, EventArgs e) { m_ShowingFields = !m_ShowingFields; m_VideoController.ToggleShowFieldsMode(m_ShowingFields); m_VideoController.RedrawCurrentFrame(m_ShowingFields); if (m_ShowingFields) { btnShowFields.Text = "Show Frames"; } else { btnShowFields.Text = "Show Fields"; } }