using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace SocketTransfer { public partial class Main : Form { public Main() { InitializeComponent(); this.WindowState = FormWindowState.Minimized; this.ShowInTaskbar = false; SetVisibleCore(false); } Receiver rec; Sender sed; private void BtnListen_Click(object sender, EventArgs e) { if (rec == null || rec.IsDisposed) { rec = new Receiver(); rec.Show(); } else { rec.Activate(); } } private void BtnSend_Click(object sender, EventArgs e) { if (sed == null || sed.IsDisposed) { sed = new Sender(); sed.Show(); } else { sed.Activate(); } } private void Main_Load(object sender, EventArgs e) { BtnSend_Click(BtnSend, null); } } }