private void btn_regresar_Click(object sender, EventArgs e)
{
Menu_principal men = new Menu_principal();
men.Show();
this.Hide();
}
private void button4_Click(object sender, EventArgs e)
{
Menu_principal me = new Menu_principal();
me.Show();
this.Hide();
}
private void btn_Regresar_Click(object sender, EventArgs e)
{
Menu_principal ol = new Menu_principal();
ol.Show();
this.Hide();
}
private void pictureBox1_Click(object sender, EventArgs e)
{
Menu_principal m = new Menu_principal();
m.Show();
this.Hide();
}