private void buttonPlayPause1_Click(object sender, EventArgs e) { if (!ThreadMade) { Thread botMainThread = new Thread(PulseCls.Pulse()); } if (!HasStarted) { botMainThread.Start(); buttonPlayPause1.Text = "Pause"; return; } if (HasStarted) { botMainThread.Pause(); buttonPlayPause1.Text = "Play"; return; } }