protected override void OnFormClosing(FormClosingEventArgs e)
{
base.OnFormClosing(e);
if (e.CloseReason == CloseReason.WindowsShutDown)
{
return;
}
// Confirm user wants to close
switch (MessageBox.Show(this, "Are you sure you want to close?", "Closing", MessageBoxButtons.YesNo))
{
case DialogResult.No:
e.Cancel = true;
break;
default:
a.Stop();
a = null;
break;
}
}
public frm()
{
InitializeComponent();
a = new c69();
}