private void TelaPrincipal_FormClosed(object sender, FormClosedEventArgs e)
{
telaL.Show();
}
private void TelaRegistro_FormClosed(object sender, System.Windows.Forms.FormClosedEventArgs e)
{
telaL.Show();
}
private void MudarSenhaE_FormClosed(object sender, FormClosedEventArgs e)
{
conexao.Close();
telaL.Show();
}