I have a form that's shown via a tray icon, I would like to override the forms 'x' close event so that it doesn't close the form and the application, and just minimizes the form.

Is it just a case of code in the closing event? or do I have override something?

doh it was very easy:

        private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
        {
            e.Cancel = true;
            WindowState = FormWindowState.Minimized;
        }